Plain Dungeon Cave has you moving through dark corridors collecting coins. I find the path winding and the enemies tricky to avoid while gathering all the coins needed to progress.
Clicking and moving is how you play, you must gather coins in the dark corridors to unlock the sacred key for each level.
The game is a 2D game with 10 levels. The stated features are 10 levels and obstacles.
Most tips say to focus on the coins first because they unlock the key. You should collect every coin because it unlocks the key needed to beat the level.
Q: What are the controls? A: Clicking and moving is how you play.
Q: What is the objective? A: Collect coins to unlock the key and progress.
Q: What stated features are there? A: There are 10 levels and obstacles.
Q: What is the main mechanic? A: Gather coins to unlock the key.