Hmm....
Makes:
- Fun Factor: If the game is fun to play (i.e. beating generic henchman to a pulp doesn't get old) then I'll replay it.
- Examples: The Bouncer, Silent Bomber, Dynasty/Samurai Warriors series.
- A sense of progression/Multiple choices: By this I mean an interesting story with branching paths.
- Examples: The Bouncer, Skies of Arcadia
- Post-game Carnage: Lots of extra stuff after the end, like hidden dungeons or bosses
- Examples: Tales of Symphonia, Kingdom Hearts (I've never played this, so I can't vouch for it, but...)
Kills:
- Unskippable Cutscenes before boss battles: Normally this occurs in games I like, which is something of an irritation.
- Examples: Legend of Dragoon, Most Final Fantasy games.
- Unbalanced enemies: If this is Lu Bu in Dynasty Warriors I'm not bothered, because you don't HAVE to fight him in most cases. Generic enemies with insta-kill moves, however, = Fail
- Examples: Final Fantasy series.
- Battle System: (This one may contain spoilers for those who haven't played FFIV DS)
[spoiler] - For example, the ATB System used in the Final Fantasy series, particularly FFIV. Allow me to relate a scenario that occurred when I playing this game a few days ago.
*Boss battle with Golbez starts, my party is still a little banged up from the fight with Calcabrina. Cecil only has about 600hp left*
Me: *waiting for a bar to fill up so I can actually do something*
*Golbez initiates scene where everyone except Cecil, who is still paralyzed from Golbez' attack and has not had a chance to heal, dies*
Me: This isn't good....
*New scene, Rydia appears, cures Cecil of paralysis and joins the fight. Golbez puts his barrier up and Cecil and Rydia's bars start to fill*
Me: Alright, revive as many as I can, then find a way through the barrier.....
*Before any member of my party even gets a turn, Golbez casts Bio and kills everyone who isn't already dead. GAME OVER*
Me: *unprintable string of curse words*[/spoiler]
That last one in particular is a real killer for me.