Good title, the slowing-accelerating pace suggest an energy bar being restaured then depleted :)
This tracks has good story telling.
The pause at 1:19 is clever, it suggested me a game character/hero returning back to his duties for a while after 3/4 regen, but soon, he has to come back and regen again.
Nice variety of waveforms and melodies, crisp sounds, the drums are very well designed. The slides and snare rolls make a good job at transitionning from the intro to the different sections.
It's balanced volume wise and stereo wise, every instrument can be heard clearly, no apparent compression...
Maybe the slowdown time at the end is a little too long, or it would benefit some FX, bitcrushing, reverbs... (but i'm no chiptune expert, so i don't know if complex effects like that are "allowed")
Overall a simple but well crafted track that fit the genre well. I'm gonna go play some old games now :)