This Datapack adds Kirby's iconic sucking ability to Minecraft. Get near a small mob, wear Kirby's Hat, and shift to suck them towards you. When a mob is close enough to enter your mouth, it will die! Large mobs like the Wither and spiders are blacklisted and cannot be sucked up.
NOTE: To use the ability, you must wear the Kirby Hat, to receive it (since it has specific NBT), type /function give_kirby_hat into the chat.