Here is the full list of all 11 Polda 5 achievements.
Finish main story.
Walk at least 10 km.
Read at least 2000 hints.
Listen to at least 2000 whole messages.
Teleport yourself at least 2000 times.
Finish the game in 2 hours or less.
Finish the game in 90 minutes or less.
Finish the game in 1 hour or less.
Be extremely careful.
Be extremely careless.
Become the best piano tuner in the universe.