An NES Tetris clone (try it in your browser!) that lets users play either under standard conditions, or with one of many modifications, to allow for effective practice.

Features:

• Frame perfect recreation of DAS, rotation, scoring, levels, etc.
• Draw or paste in a custom board and try playing out that situation
• Try out killscreen play at 50% or 33% speed (with adjusted DAS speed to mimic a realistic tap range!)
• Use Dig Practice and Drought Practice mode to practice tough sequences
• Enter a custom piece sequence to experiment with openers
• Use custom DAS settings to emulate your own hypertapping speed (without worrying about losing DAS!)
• Practice 19+ play at a slow speed to improve stacking