You'd be hard-pressed to find anyone who enjoys high concept games more than I do, but regardless of how fancy or sophisticated the idea is, there still needs to be a solid core of enjoyable play behind it. Psychonauts's premise hooked me from the start, and though I have great respect for what creator Tim Schafer has contributed to the world of videogames, I found the "mental spelunking" experience here to be lacking both in terms of plot and content.