The "2021 update" typically refers to fan-modified .jar files. These aren't new games from Capcom but rather "cracked" or "repackaged" versions that include:
If you still own a classic feature phone with a 320x240 screen: cadillacs and dinosaurs java game 320x240 2021 upd
Because native Java-based feature phones are scarce today, most players utilize mobile virtualization to experience this updated classic. On Android Devices The "2021 update" typically refers to fan-modified
: Perform signature special moves, team-up attacks, and use a variety of weapons from rocks to high-powered firearms. Vehicular Gameplay locate the downloaded .jar file
Relive the Arcade Legend: Cadillacs and Dinosaurs Java Game (320x240)
Open J2ME Loader, locate the downloaded .jar file, and install it. Set the screen resolution to in the app settings.