itch.io

I can see what you were going for and it definitly works a mechanic but it fell a bit flat for me. I found it frustrating that I woud get a good swing going and then enlarge my fist only to lose all momentum. With how much the first slows and how short the enlarging lasts its as if you expected the first to always be still in one place when it was made bigger. That is defiitely not what felt intuitive, I want to get a good swing going and then inflate at the last moment to barrel into enemies in a glorious display of destruction. 
I'm really glad you had sound sttiinngs, the in-game music was great but I found the menu music a bit repetetive. Your inclusion of a screen shake toggle was very cool accessibility although I kept my screnshake on.
I would also fix your game dimensions in your page. At the moment the game size you have set is wide and short which makes the game very small on the screen where fullscreen is basically mandetory. If you've built your game for 1920x1080 then I would rcommend setting the screen size on itch to 1280x720. That will give you the right aspect ratio and fit nicely on the screen without being so small. 
All in all this is a well made game with some great thought put into options and polish, but wasn't fully to my taste. Well done. 
(edit: spelling)