Great little game. My only gripes are that:
>It wasn't completely clear the first time that you can recharge with the recharge platforms. The sound did indicate something was happening, but I didn't realize it came from those platforms until the fourth level where I ran-out of energy a lot.
[maybe add some sort of subtle visual indication when standing on the recharge platforms? Like a little zap when you land on one, or even multiple little zaps if you walk on them to indicate that power is going through the bulb. Minor stuff that goes a long way]
>On the fourth level with the lever and moving platform, it's a little too tight with the energy. I had the puzzle figured-out, but I'd always run-out of energy an inch away from the recharge platform on the other side. I did make it through by not moving before landing to slide and conserve just enough energy and barely reaching the recharge platforms on the other side.
[you can either add a little more energy to Bulb Boy on this level, make the recharge platform on the other side reach the edge a little more, or just add a recharge platform on the moving platform...though, that one could be a little tough to program]
Apart from those, I really like the game! The music, graphics, the sound design, and the level design are on point!