head to head
Worms 2 asks more than Puyo Puyo Tetris 2, and the gap is reads.

Execution · Practiced Mastery
A competitive puzzle mashup combining Puyo Puyo chains with Tetris stacking.

Execution · Competitive PvP
Turn-based artillery comedy where teams of worms annihilate each other.
Puyo Puyo Tetris 2 leans Execution (Practiced Mastery); Worms 2 leans Execution (Competitive PvP).
Puyo Puyo Tetris 2 leans a little harder on execution, though the gap is small.
Puyo Puyo Tetris 2
fast precise piece placement under pressure
Worms 2
Ninja rope mastery and pixel-perfect grenade arcs win games.
Worms 2 leans clearly harder on reads.
Puyo Puyo Tetris 2
human opponents bait garbage and timing
Worms 2
Human opponents bait positions and hide intentions.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Puyo Puyo Tetris 2
piece/bean randomization each match
Worms 2
Wind, crate drops and terrain randomness swing turns.
Puyo Puyo Tetris 2 leans a little harder on optimization, though the gap is small.
Puyo Puyo Tetris 2
chain-building and stacking theory mastery
Worms 2
Weapon economy and positioning theory are studyable.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.