It still would be cool to use in combat gamemodes.
I tried combat, it's pretty terrible. For some reason, blockland was the issue here. The mouse sensitivity couldn't be set to something where it would work flawlessly. Looking around was very glitchy and unstable. It kept stopping for a split second or more and then continued. Or it would just go very fast. Hopefully badspot will fix this.
It's best to not use it to play a game which involves any aiming or stuff like that. Good games you can play are falling tiles, hide and seek, etc, but nothing with precision, you know?