The 2020 Celeste Spring Community Collab (often referred to as the 2020 Spring Collab) is a Game Mod of Celeste that adds over 80 maps to the game. It was the largest Celeste mod until its successor Strawberry Jam Collab came along.
It can be downloaded here
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In addition to the tropes in base Celeste, this mod provides examples of:
- Advanced Movement Technique: Many advanced movement techniques are taught in the gyms, and are mandatory for beating certain stages. A level's designated difficulty might be bumped up or down depending on how advanced its tech requirements are.
- all lowercase letters: The title of the Advanced level "nyoom", since the onomatopoeia it's named for is often rendered like that.
- All the Worlds Are a Stage: Each lobby has a Heartside, where every single map in the lobby returns. Most checkpoints mix aspects of multiple maps, often ones with similar theming.
- Anti-Frustration Features:
- While most Heartside checkpoints combine aspects of multiple maps, the puzzle map Crystal Enigma gets one all to itself. This saves the player from having to redo platform challenges just for another attempt to figure out the puzzle, and/or from having to keep inputing the solution after failing platform challenges that follow it (the solution is easy to execute once you figure it out).
- The "Water and Ice" section of the Intermediate Heartside is long into that flag and features an area that requires you to remember the weird interaction that hyperdashing into those series of water columns will cause you to gain absurd speed. There's a checkpoint in front of it so you won't have to redo the entire flag if you forgot how it worked.
- Hailfire Peaks: The level "Water and Ice" combines Lethal Lava Land with Slippy-Slidey Ice World.
- Hub Level: The lobbies that contain each map. There's one for each of the five difficulties, with the Green Hill Zone Beginner Lobby, the autumn-themed Intermediate Lobby, the cave-themed Advanced Lobby, the Lethal Lava Land Expert Lobby, and the ominous red and black castle that makes up the Grandmaster Lobby. Notably, the lobbies themselves also get increasingly difficult to traverse: Advanced can kill you if you're careless, and Expert and Grandmaster require significant tech skills just to find the levels. This aspect was dropped in Strawberry Jam Collab, whose Warp Whistle mechanic would have rendered it largely pointless anyway.
- Metropolis Level: City of Tears is a level with a gloomy ambience that takes place in a city.
- Musical Gameplay: Rhythm Realm is an entire level focusing on cassette blocks that pop in and out of existence according to the music.
- Shout-Out: The level Ultra Difficult is a nod to the level Giga Difficult in Dustforce — it uses a similar colour scheme and abstraction, and the naming scheme is similar. However, note that "Ultra Difficult" is not just a nod to how it's hard enough to break the difficulty meter — it also highlights the Advanced Movement Technique of ultras.
- Sorting Algorithm of Threatening Geography: While the maps within the lobbies are all over the place, the lobbies themselves follow this: the Beginner lobby is a Green Hill Zone with a bit of water in it, the Intermediate lobby is themed around trees in autumn, the Advanced lobby is a colourful cave with some spikes in it, the Expert lobby is a Lethal Lava Land, and the Grandmaster lobby is an ominous red and black castle. The lobbies themselves also get harder to navigate: at Advanced you can die to it if you get careless, and Expert and Grandmaster require significant tech skills just to find the levels. This aspect was dropped in Strawberry Jam Collab, whose Warp Whistle mechanic would have rendered it largely pointless anyway.
