diff --git a/itch_dl/__init__.py b/itch_dl/__init__.py
index fc79d63..0404d81 100644
--- a/itch_dl/__init__.py
+++ b/itch_dl/__init__.py
@@ -1 +1 @@
-__version__ = '0.2.1'
+__version__ = '0.3.0'
diff --git a/itch_dl/api.py b/itch_dl/api.py
index 1fd8005..f416a63 100644
--- a/itch_dl/api.py
+++ b/itch_dl/api.py
@@ -1,5 +1,6 @@
 from typing import Optional
 
+import requests
 from requests import Session
 from urllib3.util.retry import Retry
 from requests.adapters import HTTPAdapter
@@ -27,7 +28,7 @@ class ItchApiClient:
         self.requests.mount("https://", adapter)
         self.requests.mount("http://", adapter)
 
-    def get(self, endpoint: str, append_api_key: bool = True, **kwargs):
+    def get(self, endpoint: str, append_api_key: bool = True, **kwargs) -> requests.Response:
         if append_api_key:
             params = kwargs.get('data') or {}
 
diff --git a/itch_dl/downloader.py b/itch_dl/downloader.py
index 6f41c8f..3923852 100644
--- a/itch_dl/downloader.py
+++ b/itch_dl/downloader.py
@@ -45,9 +45,9 @@ class GameMetadata(TypedDict, total=False):
     author: str
     author_url: str
 
-    cover_url: str
+    cover_url: Optional[str]
     screenshots: List[str]
-    description: str
+    description: Optional[str]
 
     rating: Dict[str, Union[float, int]]
     extra: InfoboxMetadata
@@ -125,7 +125,7 @@ class GameDownloader:
 
     def extract_metadata(self, game_id: int, url: str, site: BeautifulSoup) -> GameMetadata:
         rating_json: Optional[dict] = self.get_rating_json(site)
-        title = rating_json.get("name")
+        title = rating_json.get("name") if rating_json else None
 
         description: Optional[str] = self.get_meta(site, property="og:description")
         if not description:
@@ -150,9 +150,8 @@ class GameDownloader:
             infobox = parse_infobox(infobox_div)
             for dt in ('created_at', 'updated_at', 'released_at', 'published_at'):
                 if dt in infobox:
-                    # noinspection PyTypedDict
-                    metadata[dt] = infobox[dt].isoformat()
-                    del infobox[dt]
+                    metadata[dt] = infobox[dt].isoformat()  # noqa (non-literal TypedDict keys)
+                    del infobox[dt]  # noqa (non-literal TypedDict keys)
 
             if 'author' in infobox:
                 metadata['author'] = infobox['author']['author']
@@ -166,7 +165,7 @@ class GameDownloader:
 
             metadata['extra'] = infobox
 
-        agg_rating = rating_json.get('aggregateRating')
+        agg_rating = rating_json.get('aggregateRating') if rating_json else None
         if agg_rating:
             try:
                 metadata['rating'] = {
@@ -269,8 +268,8 @@ class GameDownloader:
                 upload_is_external = upload['storage'] == 'external'
 
                 logging.debug("Downloading '%s' (%d), %s",
-                    file_name, upload_id,
-                    f"{file_size} bytes" if file_size is not None else "unknown size")
+                              file_name, upload_id,
+                              f"{file_size} bytes" if file_size is not None else "unknown size")
 
                 target_path = None if upload_is_external else os.path.join(paths['files'], file_name)
 
@@ -286,8 +285,8 @@ class GameDownloader:
 
                 try:
                     downloaded_file_size = os.stat(target_path).st_size
-                    if file_size is not None and downloaded_file_size != file_size:
-                        errors.append(f"File size is {downloaded_file_size}, but expected {file_size} for upload {upload}")
+                    if target_path is not None and file_size is not None and downloaded_file_size != file_size:
+                        errors.append(f"File size is {downloaded_file_size}, expected {file_size} for upload {upload}")
                 except FileNotFoundError:
                     errors.append(f"Downloaded file not found for upload {upload}")
 
@@ -314,9 +313,9 @@ class GameDownloader:
                 except Exception as e:
                     errors.append(f"Screenshot download failed (this is not fatal): {e}")
 
-        if metadata.get('cover_url'):
+        cover_url = metadata.get('cover_url')
+        if cover_url:
             try:
-                cover_url = metadata['cover_url']
                 self.download_file(cover_url, paths['cover'] + os.path.splitext(cover_url)[-1], credentials={})
             except Exception as e:
                 errors.append(f"Cover art download failed (this is not fatal): {e}")
diff --git a/itch_dl/handlers.py b/itch_dl/handlers.py
index b17abb5..ce1d5c1 100644
--- a/itch_dl/handlers.py
+++ b/itch_dl/handlers.py
@@ -2,7 +2,7 @@ import json
 import os.path
 import logging
 import urllib.parse
-from typing import List, Optional
+from typing import List, Set, Optional
 
 from bs4 import BeautifulSoup
 
@@ -49,7 +49,7 @@ def get_jobs_for_browse_url(url: str, client: ItchApiClient) -> List[str]:
     .xml?page=N suffix and iterate until we've caught 'em all.
     """
     page = 1
-    found_urls = set()
+    found_urls: Set[str] = set()
     logging.info(f"Scraping game URLs from RSS feeds for %s", url)
 
     while True:
@@ -189,3 +189,5 @@ def get_jobs_for_url_or_path(path_or_url: str, settings: Settings) -> List[str]:
         return get_jobs_for_itch_url(path_or_url, client)
     elif os.path.isfile(path_or_url):
         return get_jobs_for_path(path_or_url)
+    else:
+        raise NotImplementedError(f"Cannot handle path or URL: {path_or_url}")
diff --git a/itch_dl/infobox.py b/itch_dl/infobox.py
index e644e72..c59dcfe 100644
--- a/itch_dl/infobox.py
+++ b/itch_dl/infobox.py
@@ -103,7 +103,7 @@ def parse_tr(name: str, content: BeautifulSoup) -> Optional[Tuple[str, Any]]:
         raise NotImplementedError(f"Unknown infobox block name '{name}' - please file a new itch-dl issue.")
 
 
-def parse_infobox(infobox: BeautifulSoup) -> dict:
+def parse_infobox(infobox: BeautifulSoup) -> InfoboxMetadata:
     """Feed it <div class="game_info_panel_widget">, out goes a dict
     of parsed metadata blocks."""
     meta = InfoboxMetadata()
@@ -118,7 +118,6 @@ def parse_infobox(infobox: BeautifulSoup) -> dict:
 
         parsed_block = parse_tr(name, content_td)
         if parsed_block:
-            # noinspection PyTypedDict
-            meta[parsed_block[0]] = parsed_block[1]
+            meta[parsed_block[0]] = parsed_block[1]  # noqa (non-literal TypedDict keys)
 
     return meta
diff --git a/itch_dl/keys.py b/itch_dl/keys.py
index ed09694..b2087d4 100644
--- a/itch_dl/keys.py
+++ b/itch_dl/keys.py
@@ -6,7 +6,7 @@ from .api import ItchApiClient
 
 def get_download_keys(client: ItchApiClient) -> Dict[int, str]:
     logging.info("Fetching all download keys...")
-    download_keys = {}
+    download_keys: Dict[int, str] = {}
     page = 1
 
     while True:
diff --git a/pyproject.toml b/pyproject.toml
index af156eb..34e9964 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 name = "itch-dl"
 packages = [{ include = "itch_dl" }]
-version = "0.2.1"
+version = "0.3.0"
 description = "itch.io bulk game downloader"
 homepage = "https://github.com/DragoonAethis/itch-dl"
 repository = "https://github.com/DragoonAethis/itch-dl"
@@ -26,7 +26,7 @@ classifiers = [
 python = "^3.8"
 tqdm = "^4.64.0"
 urllib3 = "^1.26.9"
-requests = "^2.27.1"
+requests = "^2.28.0"
 python-slugify = "^6.1.2"
 beautifulsoup4 = "^4.11.1"
 lxml = "^4.9.0"