How many Sonic the Hedgehog games are available for iOS devices?

Here are all the Sonic the Hedgehog games available for the iPod touch, iPhone and iPad:

- Sonic the Hedgehog - $2.99 (iPod touch, iPhone, iPad)
- Sonic The Hedgehog 2 - (coming soon)
- Sonic The Hedgehog 4 Episode I - $1.99 (iPod touch, iPhone, iPad)
- Sonic The Hedgehog 4 Episode II Lite - Free (iPod touch, iPhone, iPad)
- Sonic The Hedgehog 4 Episode II - Free (iPod touch, iPhone, iPad)
- Sonic & SEGA All-Stars Racing - $1.99 (iPod touch, iPhone, iPad)
- Sonic & Sega All-Stars Racing: Transformed $4.99 (iPod touch, iPhone, iPad)
- Sonic CD - $6.49 (iPod touch, iPhone, iPad)
- Sonic Jump - $0.99 (iPod touch, iPhone, iPad)
- Sonic Dash - $1.99 (iPod touch, iPhone, iPad)

UPDATE (06/21/13): Most of the Sonic games have been reduced to $0.99.