Very fun for 256 bytes. The script itself looks beautifully compressed as well. I think gameplay is a bit dampened by the scale of the board vs your character though. In Frogger (at least the one I remember) the cars are the same size as the player. Here they are double height which quickly turns it into a game of trying to tap as fast as possible even when you're only trying to pass one oncoming car a few levels in.

One thing I don't understand is the role of the "</svg>" closing tag. I didn't immediately see any reference to an open or closing svg tag anywhere in the source.