Tips from a Beginner Who Just Beat Stage 1

Beating Stage 1 is tougher than I thought..... After defeating about 1000 mobs, the boss appears, and its HP is over 1000. 1. When leveling up, I recommend prioritizing Attack Speed > Attack Power > Range, and skipping Critical. (I cleared it with around 600 HP, 20 Attack Power, and 0.45 Attack Speed. You need to invest in HP and the number of arms, as well as some Attack Power.) 2. After upgrading your arms to 2 left and 2 right, further upgrades will reduce the number of arms to 1 each, like an awakening, doubling your attack power. So, it seems better to prioritize Attack Power later in the level-up skills.