I am missing the fullscreen button, so I can play fullscreen

The next level bar is not very visible, I think is one of the most important components of the interface: to know how more gems I need for the next upgrade.

If I press "p" I can level up my weapons :).. is this intended?

The first xp bar level took a while to complete.. but now I feel like the bar if full super fast, maybe the pace is not adjusted to my damage power level?

Music changes abruptly, maybe a fade out/in would help in the integration

I think I am experiencing some FPS performance issue.. there are not much enemies in the screen. It may be a memory leak somewhere.. or enemies or bullets that are not liberated properly :?

The magnet/gems are not fast enough. When they are chasing I am faster than them. Maybe would be better if I have not to wait for them

I was killed, the music didn't change. I don't have the impression my round has finished

I am confuse: how do I accept the character after a reroll?