If you LOVED the first title you'll...
...feel torn on this one.
It's not a bad game. Like all sequels it does everything its predecessor did with bells and whistles added. Unlike the previous title, you get an art gallery, unlockable costumes for the Time Goddess, and a more cohesive plotline with cutscenes and character development.
But that's what's off-putting for some. The first title had miniature 30 second quests selected from a world map where the boss, area, and quest were all self-contained. The bosses were made to be humorous and you'd get a small 4 sentence 'epilogue' to the quest that had a joke or two in it. The plot-line was backdrop: it merely explained why you were traveling the world.
The Second Coming places the plot in center-row and heavily emphasizes it. You get cut-scenes pre and post quest, flashbacks while you travel the world map, and character exposition and development. Bosses are no longer humorous with ridiculous motivations for their actions: they are taken much more seriously. Granted, we aren't dealing with Final Fantasy levels of writing and exposition, but the humor is considerably toned down. You'll either appreciate the expansion or hate it vehemently.
There were some casualties in transitioning to a story-driven game. Whereas you were timed in the previous title and graded on it after a quest, this game merely continues on with the storyline after a quest is finished. They've done away with the quest completion screen, which details your time and objectives completed, so the game places less emphasis on speed-running. Ironically, time is less emphasized in the series than ever before.
The sequel DOES fu*k up in two indisputable ways: the ability to go back to completed quests in a time trial mode and the ability to level up in the over-world map. When you level up outside of a quest, your level carries over to the next quest. Which means the element of grinding is introduced in a series where a 30 second quest's challenges include getting strong enough to defeat a boss. You can realistically grind outside of a quest so that when you enter it you're already set to beat the boss, which is beyond ♥♥♥♥♥♥♥♥ in this series. Secondly, while you can go back to completed quests to beat the clock, you keep all of your current equipment and levels, which is doubly insane and defeats the point of the 30 second timer and a time trial challenge.
Granted, you don't NEED to grind, ever. But the fact that it's even an option is just as bad as auto-aim in a PC FPS.
Two ♥♥♥♥-ups aside I'm really split on this game. The previous title had a more arcade-like feel and you could pick up and play it whenever and put it down a minute later. This title has a more continuous feel to it, and in transitioning to a serious RPG some of the humor of the last title is lost. I miss bosses that wanted to blow up the world because others confused their species for a similar looking species. But it's still an enjoyable title that tries something new with the base 'Half-Minute Hero' experience still lying underneath.