Level 21

''Previous: Level 20 Next Level 22''

Level 21 is the twenty-first level in Clash 'n' Slash. Plasma is introduced in this level.

Enemies

 * Space Mine - Green
 * Blue Enemy Spaceship
 * Green Enemy Spaceship
 * Red Enemy Spaceship
 * Large Cyan Enemy Spaceship

Walkthrough
The level starts with a ring of Blue Spaceships instantly approaching the planet, followed shortly by Green Space Mines coming normally rather than appearing. Use your new Plasma weapon to take care of them. A ring of Green Spaceships will also come, followed by a ring of Red Spaceships. Then, Large Spaceships will materialize in a ring and approach the planet.Take care of them, for there are a lot of them. But to make things easier, several Explosion Capsules will appear inside the ring. Shoot them to destroy the spaceships. Another ring of Blue Spaceships will arrive, followed by a ring of Green Spaceships. In addition to the Green Space Mines that are still coming, several more will appear inside the newly-arrived Green Spaceship ring. Three small rings of Red Spaceships will arrive. As a small line of Green Space Mines comes from all four diagonal directions, signifying that they will stop coming, Blue, Green, and Large Spaceships will arrive. Destroy them to finish the level.