Im played in this game 1 hour and no one achievement not gived me :(

I've completed the first world (3 stars on every stage) and don't won any achievement. Anyone having the same problem?

No achievements unlock. The game is quite fun but this is throwing me off big time. :/ If it can be fixed, please, please, do so.

So there are a total of 17 gravitons in this level. The first part of the level has 8, and the second part (that is when you go through the portal) is supposed to have 9, but i only get to find 8 and there's always 1 missing. I looked all over the place and can't find it, not even a secret passage. I know the missing graviton is in the second part of the level because when i die there i can see it flying away, just don't know it's spot. Since i looked for it over and over, i wonder if it's bugged or just r...

Without touching anything the character sprite moves forward. Bug or intentional?