Hi! It can now be confirmed that Akihabara - Feel the Rhythm Remixed fully supports the Steam Deck.

Controls are as follows:

Menu

• Navigate with the D-Pad

• Select menu items with the Start or B button

• Pause the game with the Start button. Select items in the pause menu with Start

In-Game

• Move the dropping icons with the D-Pad

• Switch the icons with the A button

• Tap the beat marker with the B button

• Activate the super charge with the X button