Marvel Cosmic Invasion December 2 patch notes focus on fixing broken boss fights, stat upgrades, and co-op crashes that annoyed players at launch. Master Mold and Annihilus no longer get stuck in weird invulnerable states, and Venom’s abilities work properly instead of freezing or dropping armor mid-move.
| What changed | Why it matters |
|---|---|
| Master Mold & Annihilus invulnerability fixed | Boss fights no longer softlock mid-run. |
| Stat upgrades now apply after level-ups | Builds actually feel stronger over time. |
| Stage 13 cinematic bug resolved | Campaign progress no longer gets stuck. |
| Venom and Hela ability bugs fixed | Abilities behave consistently in combat. |
| Co-op crashes and desync issues reduced | Longer, more stable multiplayer sessions. |
The update also sorts a nasty stat bug where level-ups did not boost hero stats and cleans up lobby stability, crashes, and sync issues in 4-player cross-platform co-op. No big balance shake-ups here, just a cleaner, more reliable version of the game.
Combat fixes that actually matter
This patch finally clears out the worst combat bugs, especially around big bosses. Master Mold and Annihilus now take damage and transition through phases as intended, so runs no longer die to softlocks or endless attack loops. Enemy grab damage and multi-hit glitches are toned down to normal levels, and those weird enemies sliding in place or bugged worm animations are fixed.
Marvel Cosmic Invasion patch notes also mention key hero tweaks. Venom no longer freezes when parried out of Symbiote Pounce, and Venom Bite keeps its armor as expected, while Hela’s teleport now syncs properly so positioning makes sense again.
Progression fixes and Arcade clean-up
The developers removed a nasty progression issue where stat upgrades failed to activate after level-ups, so builds now actually feel stronger from run to run. The developers also fixed the Stage 13 cinematic bug tied to camera shake, ensuring the campaign no longer stalls just because players disable that setting.
Arcade Mode gets some love too. Game Over no longer risks breaking the lobby, the Vampire modifier is usable again, and timers plus challenge tracking now behave correctly, which helps for score pushes and modifier runs.
Co-op stability and quality-of-life
Multiplayer is a lot less fragile after this update. The developers fixed crashes caused by joining a session and then resetting story progress, and they now send players back to the menu if a host drops while people are joining instead of leaving them stuck in a dead lobby. Cross-platform co-op also benefits from sync fixes between Steam Deck/Linux and other versions, plus smoother behavior for Sentry Laser and Statue objects.
Marvel Cosmic Invasion patch notes call out a few small comfort tweaks as well. The developers now limit She-Hulk’s heavy vibration to her controller only, prevent respawns from swapping characters randomly, and protect players from spawning into pits or losing their chosen skins after canceling character select.
Should you jump back in now?
For anyone who bounced off because of broken bosses, dead lobbies, or stalled progress, this December 2 patch is a solid excuse to give Marvel Cosmic Invasion another shot. The game now plays much closer to what the team promised at launch, especially during 4-player co-op runs and long Arcade sessions.
No huge balance swings or fresh content yet, but the core experience feels more stable and less buggy, which makes it easier to commit to longer sessions with friends. For co-op focused players, this update lands in a good place to jump back in.
