Deep Cavern (PS)/Deep Sea 2/Red Big Triangle Digger

About
This enemy is very hard to kill. It has huge HP and appears everywhere in the stage. It has high agi and low range, but makes up for that by having a strong attack. Due to it's varying size, occasionally the screen with be filled with them, meaning it is hard to escape them. They serve as a shield to the other monsters as well. They will dig in the ground, giving a "safe time" to the stickmen. With a weapon that pierce, you can then kill those devils without them attacking you.