Grenade Pack - G [1-30] / Collect all for infinite grenades
G1: Gives you grenades
G2: Requires grenades
G3: Requires grenades
G4: Climb up into the rocks and to the left
G5: Hidden behind the rocks in the upper left
G6: On the upper right platform
G7: Shoot out panel in back of save room and drop down to it
G8: Ride bottom of elevator, halfway up jump off into vent on right. Grenade Pack is hidden behind boxes!
G9: Keep going right, there is no wall!
G10: Double-jump required
G11: Double-jump required
G12: Double-jump required. Where the tracks dip, you can jump up to a ledge. Go left for the pickup
G13: Requires grenades
G14: Requires grenades. Shoot the boxes out of the way, then open the door with a grenade
G15: Hidden behind a duct on the left side of the shaft
G16: Requires scuba mask. From the cabin, go left into the lake. Then look in the lower right corner.
G17: Double-jump required. Tricky because it's not accessed from the main room in this tile, but through a vent originating in an adjacent tile. From the shaft with the fan at the top, crawl right
G18: Requires scuba mask. Open the valve to flood the room, then swim straight up and to the right
G19: Completely hidden behind the unbreakable crates at the far left side of the room
G20: Requires grenades
G21: Requires double jump, grappling hook. Jump up to vent in the roof (can't see from ground level), follow it up and right
G22: Requires grenades. Blow open the green panel under the stairs. Pickup is two tiles to the left through the vent
G23: Shoot out yellow panel in the floor of the save room
G24: Requires double-jump
G25: Requires double-jump. Get on top of the pipes, then jump/climb up and to the right. Follow the vent to the pickup
G26: Requires double-jump
G27: Requires grappling hook
G28: Requires double-jump, easier with triple-jump or grappling hook. Cave is hidden by a lip of rock, so fall past the edge and then double-jump back up toward it. Crawl along the cave to the right and down
G29: There's an opening in the upper left, swim through it and down to the pickup
G30: Requires foam. Access from the elevator shaft, open vent on right with foam
