Head to the upper floors of
How to Reach Grate Guy’s Casino in Super Mario RPG
Players often wonder how to unlock Grate Guy’s Casino in Super Mario RPG, a hidden gambling area packed with mini-games and prizes. The casino sits inside Booster Tower and requires a short sequence of story events before it opens its doors.
Once inside, visitors can test their luck on slot machines, Hi-Ho Poker, and the challenging Lucky Mole machine. Knowing the exact steps to reach the entrance prevents backtracking and lets you claim rare collectibles early in your playthrough.
Unlock Requirements
"Look at payment speed and table limits, not only the headline bonus."
completing the events at Booster Tower. Return
Grate Guy’s Casino becomes available after completing the events at Booster Tower. Return to the tower once you have the sixth star and speak to Booster’s assistant at the entrance.
- Progress past the sixth star in the main story
- Return to Booster Tower after defeating the boss
- Talk to the NPC standing outside the tower gate
Step-by-Step Path
Booster Tower and locate the hidden staircase
Head to the upper floors of Booster Tower and locate the hidden staircase behind the curtain in the banquet hall. Climb two flights, then drop through the grate in the corner room.
- Enter the banquet hall on the third floor
- Pull back the curtain on the left wall
- Ascend the secret staircase
- Drop through the floor grate in the next room
Inside the Casino
with unique rewards. Bring extra coins because
The casino floor features three mini-games with unique rewards. Bring extra coins because the prize shop offers rare accessories that boost stats for the final dungeon.
- Hi-Ho Poker offers the highest coin payouts
- Lucky Mole requires precise timing for rare items
- Use winnings to buy the Signal Ring accessory
Tips for Big Wins
Save your game before each attempt
and reload if you lose too many
Save your game before each attempt and reload if you lose too many coins. The machines have fixed odds, so persistence and bankroll management help you secure the best prizes quickly.
Frequently Asked Questions
When does Grate Guy’s Casino open?
The casino unlocks automatically after you defeat the sixth star boss and return to Booster Tower.
What rewards are worth buying?
The Signal Ring and Mushroom accessory provide the best stat boosts for the final dungeon.
Can I play the casino games multiple times?
Yes, the mini-games are replayable at any point after unlocking the area.
Are there missable items inside?
No, all casino prizes remain available throughout the rest of the game.