This is level 6 of the G-Tunnel.
As the Lizard, try to do high jumps and look for a good landing place, though they are common on the platforms on the right hand side. You don't have to worry about the Crumbling tiles, since they are not inter-connected, so they won't be much of a hassle to you in this level.
As for the Bunny, hop for a few times and gain speed, then do long jumps to skip large portions of this level, repeat for a few times, and you will beat this level. Though, using the Bunny is actually pretty hard, so using the Lizard would be a more preferred choice. If you want, the Student and Runner are also considerable choices, too!