It is played on a large 70" DLP Projection Monitor, running on Sega System SP.

[2][3] It is controlled using giant joysticks, the right joystick being slightly lower than the left one, with a built-in shaker "rumble" motor, a device that Sega refers to as "Deka Lever" (deka is Japanese for large).

During competitive multiplayer, clearing multiple block rows makes the other player's speed increase.

Unique to this game, the Tetris Dekaris/Giant base unit is actually a projector which can optionally be detached from the default screen and projected onto a large wall.

Arcade operators are able to disconnect the game from its default monitor and project the gameplay onto a large wall.

If a player would top out, either by placing a block entirely above the line over the 7th row or by having piece entry blocked, the bottom seven rows will be cleared and the player will be allowed to continue playing (however 5 seconds will be deducted from the timer).