Which PC Engine games have the most replayability?

[PukeSter]

Besides Dungeon Explorer and Rondo of Blood?

I guess also Darius, but I'm not good enough to beat it.

[esteban]

Wonderboy III: Monster Lair
Soldier Blade
New Adventure Island
Air Zonk
PC Genjin (1 & 2)
Bloody Wolf


Splatterhouse?
Super Star Soldier?

[BigusSchmuck]

Any Bomberman games, Battle Load Runner. Hell, any game that has the ability to play multiplayer in my book has plenty of replay value.

[Digi.k]

I've had great replayability with; Valkyrie no Densetsu, Parodius Da!?, parasol Stars, magical Chase, Mizubaku  Daibouken, Jigoku Meguri just to name a few.

[roflmao]

Devil's Crush!

[majors]

Parasol and both the Crushes. Personally, I can play Power Golf or Victory Run for decades.

I can always come back to Spriggian, Blazing and the Soldiers...having Time Attack mode helps for replay(short quick games with a goal)

[Arkhan Asylum]

CHINA WARRRRRRIORRRRRRRRRR

Devil's Crush

 Vigilante!

[Gredler]

Kato Chan and Ken Chan, I would say! you have to replay it over and over to learn where to go and what to kick

[DragonmasterDan]

Any Bomberman games, Battle Load Runner. Hell, any game that has the ability to play multiplayer in my book has plenty of replay value.

Bingo the multiplayer games are key. Throw in Sapphire, Monster Lair, Motteke Tamago, Splash Lake.

[xcrement5x]

Any Bomberman games, Battle Load Runner. Hell, any game that has the ability to play multiplayer in my book has plenty of replay value.

Yes! BlueBMW turned me onto Battle Lode Runner for the multiplayer and it is SOOOO much fun with a couple folks. 

[geise]

Buster Bros/ Pomping World and Gate of Thunder

[esteban]

BUSTER!

[jtucci31]

BROS!

[gekioh]

I was gonna say Buster Bros. but looks like it already got mentioned. I think Galaxy Gayvan could be a contender, it's multi-player.

[Bardoly]

Any Bomberman game...

^^This.

[o.pwuaioc]

Most shmups.