Hook

Battle Royale: Humans vs The Blob. If the blob eats you, you join it.

Pitch

Battle Royale, but it’s a 2D platformer where it’s 99 humans against a giant amorphous blob, and any humans that get eaten by the blob JOIN THE BLOB, which is a bunch of players all controlling one entity collectively.

Explanation

So you’ve got this map. 2D running around and jumping, and presumably being able to fight somehow (let’s say swords and short-ranged guns). There’s one amorphous monster blob under computer control that starts in the center of the map, and starts out fairly small. Everyone else is a human. Humans are all on the same “team” in the sense that they can’t hurt one another directly. The only way a human can be hurt is to be caught and digested by the blob.

The blob moves like an amoeba, via pseudopod projection. The blob is a certain amount of stretchable membrane stretched over a certain volume of cytoplasm. It can project a pseudopod out in one direction to stretch the membrane, and the terminal point of this pseudopod moves sort of like a player – it can run and jump, albeit slowly, and it’s attached to the host blob, so it has limited range. But by moving consistently in one direction it can drag the rest of the mass of the blob in that direction. The pseudopod can also choose to “stick” itself so that it will cling to the current surface, allowing it to drag the whole blob up walls and platforms.

Whenever a human touches the blob, it risks being engulfed. After more than a second of prolonged contact with any part of the blob’s surface, a human will be stuck, and will have to jump vigorously to free themselves. After a few more seconds they will start to sink into the cytoplasm. Once completely inside the blob, they’ll have a few final seconds before they are digested and converted from a human player into a blob player. A human with enough luck and determination can sometimes free themselves from the blob, but your chief hope of rescue is other human players. As long as a player is not yet fully digested, other players can free them by simply destroying the part of the blob that holds them. The blob has one additional tactics – engulfing. By taking a pseudopod node and wrapping it completely around a player (by jumping it over the player’s head and making contact with the blob surface on the other side), the player will be instantly deposited into the blob’s interior cytoplasm, skipping straight to the final digestion phase.

Once a human has been fully digested, they’re not out of the game – now they’re playing for the ever-growing team blob. Blob players directly control pseudopod nodes, heck they are pseudopod nodes. There’ll be some visual indicator (a colored circle or something with their initials?) that ties them to their previous identity as a player, which is what they control on screen. Whereas human players are all playing individually, team blob is a team effort. If a bunch of pseudopods all pull in the same direction, they can move the blob fast. But if they pull in opposite directions, they’ll slow the blob down. If there’s enough tension (literally) within the blob, pulling in different directions, the pseudopod nodes can literally pull the blob monster apart. This might have some strategic advantages in certain situations, but usually puts the divided blob players at a disadvantage because a smaller blob is easier to kill. This is because blob players can actually move quite quickly within the cytoplasm of the blob, and are only slow when they are tugging against the stretchy blob membrane at the edges. Also, blob nodes are well protected inside the blob’s cytoplasm. Players can attack and even kill blob nodes.

Attacking the blob causes its cytoplasm to deplete at the target location. If a player attacks an extruded pseudopod, they can divide the blob into pieces and isolate blob players within it. Then, by destroying all the remaining cytoplasm around that blob player, they eliminate them from play.

The blob cannot be defeated, however, its victory is inevitable. Any damage to its cytoplasmic volume is temporary, and it will soon catch up. Besides that, it is constantly growing, and blob players can accelerate that growth with every player they consume and various food power ups they digest along the way.

Scoring

The scoring system intends to encourage the following kind of play:

So here’s a stab at achieving that: