Credit to @Tim_Here, Nippon TV (脱出ゲームDERO !), Snake 19 (rip of music on YouTube), and Roblox. (Mouse over Japanese text for localization) Й is now attempting to retrieve a key from the challenge box, starting to pick one up after 6 seconds. However, it seems that the controls may be more sensitive then anticipated as the key suddenly tilts diagonally. Despite this, Й manages to regain control, and is about to insert it into the exit tube. And the key has now been retrieved. If you are curious how the Keybox Challenge works in real life, here's a YouTube video of actual DERO!: https://youtu.be/wJUOWN4tg6A?t=341