I think it's okay. The idea that you can help the skeletons to get some much-needed boosts does add an interesting mechanic to the tight platforming that you have to do in this game. However, the platforming itself feels very harsh, and extremely slippery. I would recommend making the physics a little tighter and responsive by tweaking the default GB Studio settings.
Reminds me a bit of the I Wanna be the Guy Series.