Celeste
30 Achievements
1,000
8-10h
Gateway
Collect a Cassette Details for this achievement will be revealed once unlocked
25
30.13%
How to unlock the Gateway achievement in Celeste - Definitive Guide
Since this will be your first cassette tape, I'll go into a bit of detail. There's a cassette tape in every main level, usually in an out-of-place room. These rooms feature alternating pink and blue platforms that are usable only when they're highlighted and unusable when they're dark. They change in a set pattern for each room. Only pink or only blue platforms will be highlighted at once, not both.
From Section 3 of Chapter 1, jump up in the first room and grab onto the moving platform to get it out of the way, then quickly dash over it and climb the wall to go up into the next room. Stand on the moving platform here and jump at its peak, then dash upwards to reach an upper platform and the next room through the ceiling. Dash up and grab onto the moving platform, then drop down and head into the previously hidden secret room that it was blocking, which is the cassette room.
Welcome! Observe the pattern and soak it in. You'll need to cross these alternating blocks as they are usable. Crossing over the two blue blocks is a little harder than the others, but if you go full speed, you shouldn't have any issues. When you get to the moving platform, I suggest holding onto the wall overhead until the pink block goes dark to jump onto the platform and fling toward the blue block. You can hold onto the blue block if it's still there, jumping at the last second to dash forward and land on the ledge with the cassette. Grab it and be bubbled back to the start of the room.
If you fail along the way, you'll start back at the beginning of the room and the cycle will reset from a different point than where you left off. Make sure you observe again before you start over.
Timestamp: 16:05
There are a total of eight Cassettes, with each chapter containing one. Cassettes are placed and hidden in strategic locations. Once the player has found the chamber in which the Cassette is held, the player must use disappearing and reappearing platforms (they shift in time with the beat) to reach the cassette. If you are playing without Assist Mode, I hope you have a keen ear and good timing!
Each cassette will unlock the B-Side for the related chapter. Once the cassette is collected, B-Sides become available to play from the chapter menu. If you have gotten through Celeste without the use of Assist Mode, the B-Side chapters will certainly break your courage.
Cassettes can be found as follows:
Cassette tapes are another form of collectible in Celeste, with one cassette to be found within each standard chapter (not in the B-sides or C-sides). Collecting each cassette will unlock access to the B-side variant of the chapter in which the cassette was found.
The cassette locations are shown as part of the walkthrough videos above for each chapter but, with credit to YouTube user Ako, the following video focuses just on the cassette tapes.
https://uk.ign.com/wikis/celeste/Walkthrough