CONTROL is the third and final Level of BIT.TRIP CORE. The background changes at each Stage transition, and each background's animation is for the most part, if not fully looped, apart from the moving camera. It consists of structures floating in the air (Stage 3's central structure possesses a giant platform underneath, itself probably floating). The majority of them have a similar look to EXPLORATION, a few others share DISCOVERY's color palette and mechanical looks.
It follows after EXPLORATION and comes before ID.
This Level is the hardest one in CORE (though, after beating the previous one, CONTROL certainly may seem easier due to their almost even difficulties) and uses clever tactics to keep its few, simple patterns confusing and fresh every time. The tone of this Level is a breath of fresh air in comparison the previous ones, especially EXPLORATION. A lot of things in CONTROL give the feeling of domination, understanding over the game and its mechanics, hence the name, namely the cutscene, the happy-sounding chiptune, and the colorful backgrounds. A lot of the backgrounds can be associated to real-life objects, sometimes more or less obvious, like a clock.
The music, also seen as BIT.TRIP CORE's main theme, is a lot more joyful and chiptune-like than he previous tracks and relies a lot on sound effects, even more so in the OST. The first Stages get very repetitive, usually only adding a layer or intensifying one, but the second half of the Level diversify a lot more. The happy part of this track is supposed to represent CommanderVideo finally able to fit into the rest of the world, and to an interpretary extent, the player's mastery of the game. Since CV can finally comprehend and fit into his world, that explains why most backgrounds are very similar to and associable with real-life objects.
If you manage to hit all the rainbow Beats, the five bars will appear from left to right, and flash in the same order as EXPLORATION, the difference being: red flashes instead of lighting up, though it still remains the last. A drum beat pattern with some delays/pauses ending off with four loud, somewhat deep and vibrating sounds resembling error sounds or disc scratching will play and move on to the next stage and the next part of the music. If you don't, the bars will dully appear from right to left and disappear, and you'll hear (TBA), then you'll play the next stage normally, but with the same music track as the previous one.