Space Giko Harriya-n is a decent Space Harrier remake by Adove Project, available for both Windows and OSX platform. Featuring a new set of sprites, it follows the original very closely in terms of gameplay and enemy flight patterns.

Click on the SDL link to access the download page.

Name: Space Giko Harriya-n
Developer: Adove Project
Category: Shooter
Type: Freeware
Size: 10MB