Very cute!
I think I found a bug (besides the characters): I got stuck around level 9 - the button on the platform wouldn't react when I stepped on it with the ant, so I couldn't let the butterfly out.
Sorry for the inconvenience. I believe this happened because of the level lag, you can try to reset it with the start button.
A version fixing bugs and reducing lag will be released soon.
thanks for playing it :>