What I do not like about this game clone (in order of priority/importance):
1. Pixelated and incomplete gravity (smooth pieces falling and either The Sticky Method or The Cascade Method should be implemented - https://gamedevelopment.tutsplus.com/tutorials/implementing-tetris-clearing-line...)
2. Pixelated graphics (in 2018 really?)
3. Unity engine usage for such a simple game (about 32mb bloat)
4. Missing changeable music options
5. Menu controlling my a mouse only.