Mr. Do!

Do can defend himself from the bad guys in two ways: firstly, he can push the apples located throughout the playfield on top of the enemies and crush them.

Do is armed with a power ball.

This can be thrown to destroy an enemy.

Do has only one power ball, though, so he will need to wait for it to return to him before it can be used again.

From time to time an alpha monster will appear on the screen bearing one of the letters in EXTRA.

If you use the power ball to destroy an alpha monster you earn that letter; when you've earned the complete word EXTRA you receive an extra life.

When you successfully collect all of the cherries, you will move on to the next, more difficult level.

The mobile version of the game includes the original arcade version, as well as an enhanced mode with new levels, power-ups, and graphics.

Mr. Do! for Game Boy is currently worth €30.89 loose, €101.12 complete in box, and €232.72 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

Mr. Do! has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Mr. Do!, loose is €30.89 and CIB is €101.12 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of Mr. Do! is currently worth €30.89 loose, versus €26.23 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.