Inside a large dungeon, Robot One is fighting monsters while upgrading weapons. Every time you upgrade a level, you can choose one of the base weapons and rotating weapons to upgrade the weapon level. At each level, the number and types of enemies will continue to increase, so we need to make full use of the characteristics of various weapons and avoid the siege of the group of enemies in time.

Features:
- 12 weapons can be upgraded to 10 levels
- 5 revolving weapons can be upgraded to 10 levels
- 5 auxiliary skills can be upgraded to level 10
- Automatic aiming and automatic polling to fire bullets