Uploaded October 2023 | Updated September 2026, 1 hour ago

---

Shoutout to Zempro, who turned my night around and single-handedly got me a little better at Tetris.

Quick explanation of why this is cool: the left wall of the playfield is harder to reach than the right wall because pieces spawn biased toward the right. You can make any placement toward the right wall with 3 to 4 taps on the d-pad, but some placements toward the right wall require 5 taps. Those are the vertical I-piece, vertical J, T, and L pointing right, and vertical S and Z. These placements are important and often necessary to stack up high on the left side and stay safe.

This romhack disables 5-tap movements and forces you to reach the left wall with 4 taps or less. Movement is a lot more limited and you have to get creative with what you stack left. Any piece that can make the left side of the stack taller without a 5-tap--most importantly, the O-piece placed all the way left--need to be prioritized. It's also easy to become dependent on pieces, most commonly the L-piece. If your left side has a 1-wide hole, NOTHING can get down in that hole but a flat L-piece in spawn position. So you can't bring down the level of the stack in those situations if you don't get an L-piece. L pieces sort of become the new longbar and you're frequently stacking waiting for them.

Anti-5-tap stacking is an interesting thing to think about and I'm going to keep working on learning this. It has an important application in killscreen play: 5 taps are DANGEROUS. You have to make more accurate taps on the d-pad in less time, and if you miss any one tap, the piece hangs. For someone who doesn't hit literally 100% of their 5-taps, it's just a matter of time before you hang a bar on the left and die, so the longer you can go without being forced into a 5-tap, the longer you will survive on average. So this anti-5-tap romhack is really good training for stacking on killscreen without ever being forced to make a risky 5-tap. -- Watch live at twitch.tv/xenophilius