I got to 254!
I loved this game. The concept is very cute-- I've heard that are scared of cucumbers b/c they're evolutionarily primed to be afraid of sneaky snakes which look similar.
The strategy of having to double back in order to attack and avoid the health cost of jumping was very clever. Makes you choose judiciously when to use which move in exciting split second decisions.
The character design and level design was very cute and funny, especially the rocket pickle, and it meets the limitation well. Nice work!