Yeah, the rockets are definitely too small to serve as platforms, but I didn't have enough time to change them up. I didn't want to over-tutorialize to the player. The controls are in the menu and I put the rockets right in front of the start area as a visual tutorial. I wanted to show rather than tell. As for rocket jumps not hurting the player, if there's no penalty for doing a traditional rocket jump, then there's no reason for them to use the rockets as platforms. Obviously, I need to play around a little bit with the balancing, but I think removing damage from the rocket jump would completely undermine the core concept I was going for.
I appreciate the feedback, and I'm glad you enjoyed the concept. Thanks for playing!