Platformer game collision problem

[pdiddles03 1]

I'm writing my own map using my own method to parse through arrays in order to create a map.  if you visit the link i provided, if you hit the right key , keep it down and jump when you are colliding to the right, you get some undesired results. 

Any thoughts on why this happened?

http://calebprenger.com/happytrex

[Mickety 8]

I think the collision box is a little wider. Try moving right and jumping BEFORE you hit the wall. Once you do, character will hit a ceiling, that is not there. Hope this gives you some insight.

[pdiddles03 1]

1 hour ago, Mickety said:

I think the collision box is a little wider. Try moving right and jumping BEFORE you hit the wall. Once you do, character will hit a ceiling, that is not there. Hope this gives you some insight.

No.   It looks like when i round the pixels this is a problem.