Deagle Knight

Deagle Kight is a 2D top-down dungeon crawler where you must complete each stage of a three-level dungeon to progress to the final boss. When you defeat it, the dungeon is reset and all the monsters in it are levelled up, giving them more damage, attack speed and health. 
Defeated enemies drop coins that can be used to improve all aspects of the game's experience and can lead to fun overpowered builds.
There is also the Splendor, an ancient powder that gives you increased damage and speed once you have collected enough of it.