Tetris Drop Dual
Group: Multiplayer • Author: DJ Sures
Created 2026-11-13 • Updated 2026-11-13A Tetris falling-block duel for two NABUs. Pieces made of four blocks drop into your well.
You can find Tetris Drop Dual in the Multiplayer category. To run this, look in the Internet Adapter or Headless menu on the NABU/MAME and navigate to the Multiplayer channel category and select Tetris Drop Dual.
A Tetris falling-block duel for two NABUs. Pieces made of four blocks drop into your well. Slide and turn them to fill whole rows: a full row disappears. Clear two or more rows at once and junk rows climb up from the bottom of your rival's well. The first player whose well overflows loses the round.
Ways to play
- Online (1 vs 1): Join someone who is waiting, or open your own duel and play solo until a rival shows up. Rounds start as soon as someone joins. If your rival leaves, you go back to solo play until the next one arrives.
- Play the NABU: Duel the computer. Press D on the title screen to choose Easy, Normal or Hard. Hard is very hard!
- 2 players, 1 NABU: Two joysticks on one NABU. Player 1 is the left well, player 2 the right.
- Solo: Just you. The speed goes up every 10 rows. Chase a high score.
Press L on the title screen to choose the starting speed (1–9).
Controls
| Action | Joystick | Keyboard |
|---|---|---|
| Slide the piece (hold to keep sliding) | Left / Right | Arrow keys |
| Drop faster | Down | Down arrow |
| Drop it all the way | Up | Up arrow |
| Turn clockwise | Fire | Space or X |
| Turn the other way | — | Z |
| Back to the title screen | — | ESC |
Dueling
- Clearing several rows with one piece sends junk to your rival:
- 2 rows send 1 junk row.
- 3 rows send 2.
- 4 rows send 4.
- Clearing rows with several pieces in a row adds extra junk.
- Junk coming at you shows as red blocks in the outer wall of your well. It climbs in when your next piece lands without clearing a row.
- Clearing rows knocks junk out of your own meter before it can climb in.
- Junk rows always have one gap. Clear them like any other row.
- Both players get the same pieces in the same order, so nobody gets luckier pieces.
- The speed goes up every 30 seconds, so every round has an end.
Your screen
- Your well is on the left and your rival's is on the right.
- The next piece shows above each well.
- The middle shows wins, rows cleared and speed for both players. In solo play it shows your score and the best score.
- The dotted outline shows where your piece will land.
Tips
- Keep your stack low and flat. Holes under blocks are hard to clear.
- Leave one column open and wait for the long piece. Four rows at once hits hardest.
- When red blocks appear in your wall, clear a row quickly to knock them out.
- Up drops the piece instantly. It's fast, but there's no taking it back.
