Players have already found exploits for the Sulfur Cube in Minecraft, including using it as a mode of transportation
When I started playing Minecraft many years ago, the options for minigames were pretty slim. Aside from recreating the Hunger Games in a beloved experience known as survival games, the only thing we really had was spleef. If you don't know what this is, it's basically when you and a bunch of other players are unleashed into an arena, where the floor is usually made of an easily broken block like snow, and given a shovel.
The aim is to break the floor underneath your fellow players to knock them into the lava pit below.