Fun platformer, I always like the idea of using an effect to alter the landscape of the level so it’s cool that is was done here. It was fun to run to the end of the level. Nice use of the assets as well.
The ground pound felt awkward to use, a lot of times the time bubble wouldn’t come out, I guess cause I wasn’t always holding down? Having to use that command to go through elevators felt really unnecessary, especially because you have what looks like a time a penalty every time you accidentally spawn the bubble instead. I think you could have afforded to use other keys/buttons for these actions.
The platforming also felt a little floaty to me, would have preferred something a bit tighter especially for the many single tile halls that were really impossible to get into if you had to wall jump into them. That was where the bulk of my time was spent on some screens and it was frustrating at those times.
A minor thing but I think the main menu buttons should be on the foreground layer, looks weird to have them covered by image elements.
Good work!