Thank you very much for the feedback! I’ll have a look into those problems, do you mean the first level with the red blocks?
To complete level 10 you need to double jump in the first bit and then dash at the top (or vice versus but that way is easier), I have made the distance you need to travel shorter in the latest version but this won’t be released until after rating is done. The level 8 glitch has (hopefully) been fixed as well :)
I’ve also added many particle effects to things like jumping, dashing and breaking blocks