| Type | Tool |
|---|---|
| Use time | 15 (Very fast) |
| Tooltip | Grants fall damage immunity, a substantial boost to jump speed, and a slight defense boost if the player is not wearing wings |
| Grants Buff |  Rocky With Lasers |
| Buff tooltip | You are immune to fall damage and jump speed and defense are boosted if not wearing wings |
| Rarity |  |
| Buy / Sell | 5 / 1 |
Rocky With Lasers is a Hardmode book that is purchased from the Ghostwriter for 5 after Golem is defeated. When used, it significantly boosts the player's jump height and ascent speed while they are not wearing any wings, allowing them to reach up to 72' height when ↷ Jump is tapped quickly and 106' when held, as measured with the Depth Meter from the Level Surface boundary between the surface and underground. It also grants immunity to fall damage and 6 extra defense, but all of these bonuses only apply while the player is not wearing any wings and they will be revoked if they are, making the item useless. Notably, the Rocket Boots and its derivative items will not disable the book's bonuses while worn, allowing the player to retain some level of control while in the air.