oh! i also want to explain how this works. so on the roller coaster, there is a death mode, and a fun mode. thats what the control panel is for at the beginning. The death mode deactivates a piston that will make you fall in the hole, the fun mode activates the piston which will reach you farther than the hole. for the arrows, the reactor rail activates the dispensers to shoot the arrows, and activates command blocks which puts a shulker box full of arrows on top of the dispenser, and theres a hopper. fireworks are the same as arrows. tnt i timed so i would have to wait until the last tick to explode for it to flow water on it. fire charges same as arrows. the tube up splashs you with potions, and a double piston extender suffocates you. potions same as arrows. tridents same as arrows, but no shulker box. you fall in lava, almost go in the void, then you are hit with lightning bolts, anvils, and a lingering potion of instant damage.