RockBot 2

5/7/2021

- fix collision on water when there is a single block ahead
- fixed animation-timer for when shooting on stair
- changed 1up style and animation (even if this item is deprecated)
- do not change to default weapon after calling coil or jet
- correct jet/coil colors on teleport
- remove jet/coil once player dies
- jet item should only start moving once player set foot on it
- do not show boss HP is he is dead or out of extended-screen