The official DBZ Devolution subreddit (r/DBZDevolution) has stickied threads specifically for the 123 exclusive patch notes and sprite packs.
The short answer: Dragon Ball Z Devolution 123 captures the raw, visceral feeling of the anime better than many million-dollar productions. The pixel art is charming, the combos are satisfying, and the exclusive "123" version polishes every rough edge of the original demo. Story mode, Tenkaichi Budokai (Tournament), and Versus mode
Story mode, Tenkaichi Budokai (Tournament), and Versus mode. Tenkaichi Budokai (Tournament)
Understanding "Download Dragon Ball Z Devolution 123 for Android Exclusive" which now includes over 500 characters
The developer (Txori) frequently updates the roster, which now includes over 500 characters, including those from Dragon Ball Super and various movies. for playing this on a touchscreen, or are you looking for Dragon Ball games available on the Play Store?