Blitz: Hide, stay hidden to avoid its rebounds. Looksman: Do not point your character directly at its eyes. Haste: Go fast and pull timers to avoid it spawning.
This game is a Scratch recreation of the Roblox DOORS experience. This is "THE BACKDOORS", which was available during "The Hunt" event. You must complete 50 doors to get back on track and win. Occasionally, monsters spawn to try to attack you.