This game and idea is so exciting! Looking at the screenshots I first imagined getting stuck between the boxes in the room. I wish there were more challenges and interactions! Like multiple opponents and maybe hoses even. And traps, hazards and status effects!
If there was a harder mode, maybe it could make you helpless and slow you down the more inflated you are (Because returning the hose is easy and failing to avoid it should be more punishing :3). That's gotta be my favorite way to lose! Opponent(s) would just watch when you can no longer move, and maybe help inflate you.
Now if there was a game like this with throwing darts, gradual immobilization, and multiple opponents against me, I'd be in for a world of fun..