checked-no =>Endless Mission Mode (USA version only): Once you've completed Mission Mode and unlocked all the characters, you'll unlock the Endless Mission Mode. =>Mirror Time Attack: Complete Time Attack stages A through J to unlock Mirror Mode. =>Additional Characters: Additional characters are unlocked as you complete the levels of Mission Mode. * 500M - Puchi * 800M - Holzinger-Z * 1000M - Anna * 1500M - Taizo (Main character from Dig Dug) * 2000M - Ataru =>Badges: In Mission Driller, you can earn Mr. Driller badges by finishing a level without dying and without using any items. You can't earn a badge in Outer Space, however. =>Title Screen Flowers: Up to seven flowers will appear on the title screen as you complete the following requirments. * 1 - Complete all standard Mission Driller levels. * 2 - Complete Mission Driller - The Moon. * 3 - Complete Time Attack - Japan. * 4 - Complete Time Attack - Reverse Japan. * 5 - Complete all Drillstone Driller levels. * 6 - Complete all Pressure Driller levels. * 7 - Unlock flowers 1 through 6. =>Usagi Character (Euro/Japan Only) Complete 2000M on The Moon while playing as Ataru. =>Endless Modes (Euro and Japan versions only): Several additional Endless levels and modes are available in the European and Japanese versions of the game, but NOT in the North American version. * Endless Tokyo Dristone Driller: Complete Dristone Driller once and you'll unlock the endless Tokyo Dristone Driller stage. * Outer Space: Complete Mission Mode - The Moon. * South Pole: Complete all of the standard earth levels in Mission Mode.