Okay well after a few very busy days, I've been able to get some free time to complete some more spines! I've uploaded the completed Dragon Warrior/Quest spine set in US size. I made the logos overlap a little rather than being cut off. It may look a little odd on the preview where 4 connects to 5 and 5 to 6, but they should look fine when printed I think. I also made the roman numerals gold, as close to the look of the numerals in the game logos as I could. The only logo I couldn't remove the numeral was Dragon Warrior III, though I don't think it's too distracting.
I also realized I forgot one of Sonic's handheld adventures - Sonic Pocket Adventure to be exact, so I made a spine to match my other Sonic spines in both US and EU sizes. Unless I forgot something, other than the GBA/DS Sonic & Sega All-Stars-type games, I believe I've made covers for every handheld Sonic game!

Downloads in the link in my signature. Hope it turned out the way you were wanting, soundwave925!
EDIT: Have a look at all the Sonic spines! What better way to celebrate 20 years of the blue blur than a collection of 25 way past cool handheld adventures? (okay I'm done with Sonic references

) I may have gotten a little carried away after my original 3 Sonic Advance spines, but it was fun to make one for each game. I'll do Sonic Generations once it comes out, probably featuring both Sonics.
