I was experimenting some performance issue, which I think it's because my pc is not very powerful, but given how simple looking the game is, I think you should work on optimizing it. 

In some parts if the game I noticed that I couldn't see the goal, and I died in place where there were no clear hazard or pit, I am guessing it was intended to keep the player from getting stuck, but I think adding spikes would be a less confusing solution. 

There is more you can do with the main mechanic of course, it's a very good mechanic for a game and I had fun using it. it reminded me of Leo's fortune, which has a very similar premise. I think the game is fun and has potential, keep it up!

The movement felt great on this! the amount of different keys for each option was a bit confusing at first but i managed to pick one that worked when i started the game. I used my LMB and RMB for scaling as this felt the most intuitive.

I struggled a bit with level 6, were some floors not allowed to be used? i kept being reset when going on some of them. In the end, i did managed to get stuck in the bottom left hand corner of the map near the bottom, and pressing reset level didn't reset. So i'm not too sure what the ending looked like.

A perfect concept to build on! i hope it was a fun time to develop :D

- Gambit ♟and the folks at Shadowbolt!

The concept of scaling up and down a ball is quite good: it’s simple and could lead to pretty cool gameplay if exploited correctly. But I think it isn’t in “Ball!?”. The game is way too easy and feels like a puzzle-platformer even though it’s not. If I were you, I would either completely go down the route of shaping it into a puzzle game, or I’d focus uniquely on the changing the ball’s size and jumping mechanics to make it another genre. For exemple it could easily be reworked to be a geometry dash-like game where you die when touching the ceiling and the left side of the screen and need to get to the finish line. Before working on anything visuals-related, you should really focus on designing a primary gameplay loop that is exploits the scaling idea at it's full potential.

But just so you know, I’m just a hobbyist. I have no background in game design and you shouldn’t take my word as the ultimate truth. I’m only giving you my honest opinion on the game and some ideas on how to shape it into something (hopefully) better.

Have a nice and enriching development journey ^^