Drill Planet Weapons & Digger Tips

Planet Weapons Shellstorm is always the #1 priority for full upgrades. (You get a lot of upgrade materials from rifts.) For paying players, Chrono Dragon (I'm not a paying player, so I don't know much about it.) - I haven't looked into this, so I can't describe it. Hive and Magma Cannon are #2 priorities. (If you don't plan on playing for long, don't touch them. If you only plan to clear the 2nd planet's 3-5 hidden quests, just equip Hive and move on to Shellstorm.) Special Cooling Device is absolute trash. Digger (= Upgrade moderately and open slots one by one as the digger breaks through.) Each digger has a passive effect and an equipped effect. If all are D-rank: ☆Focus on choosing ☆equipped effects for all planet weapon power☆. 25% Digger = Kid, Rambo, Robot, Space, DJ (Total 125% increase. This boosts the power of Shellstorm mentioned above.) 20% Digger = Magic Stage, Event Digger (B-rank or higher) - Robot (Drill), Beard (Drill), Top Gun (Drone), Clown (Bounce Ball), Kid (Bounce Ball) Rift Digger (B-rank or higher) Clown, Kid -> Change to Sawtooth (Circular Saw), Surprise (Circular Saw).