Your staff fires from the start. ATK (X) shoots your equipped weapon, free. SP ATK (C/V) unleashes a Starfall Nova that pierces ahead and clears everything around you. DASH (Z) phases you forward through enemies and gaps with i-frames. SP ATK and Dash spend Mana; grab the Astral Crystal for stronger shots.
Collect Star Shards (your currency), refill at Mana Crystals, and hunt three Constellation Fragments. Open ITEMS (top) to equip elemental weapons and buy upgrades. Cast near a shimmer to reveal secrets. Then beat the Void Warden.
On phone, on-screen buttons appear automatically. Play however you like.