Super Ninja - Survivor.io

The best way to defend yourself is to attack!
All over the world, evil monsters are plotting to attack humans! 
You, a super ninja, have been given the mission: defeat these hordes of monsters and return home safely!
Use the portals developed by genius scientists to infiltrate the monsters' bases!
However, the portal will close after a certain amount of time. You must defeat the boss monster and return in time!
You are the only hero who can save the world!

Game Features
1. Thrilling roguelike adventure game
2. Easy one-handed control to wipe out all the monster hordes
3. 18 skills and 12 artifacts to create powerful and awesome attack combinations
4. Supply crates on the map to help you survive each crisis
5. Powerful upgrades to your equipment and attributes through experience points, money, and more earned throughout the game
6. Retro dot design aesthetic