A new version of Trash Panic, just released in Japan, uses a pay structure more like coin-op arcade games than downloadable games: 100 Yen Gomibako costs just 100 yen (about $1) to download, but only allows three play sessions, at which point it prompts the user to pay another 100 yen.
Strangely, completing one of the two modes in 100 Yen Gomibako unlocks a bonus in the full version of the game: Steel Mode opens up the same mode in the original Gomibako. Clearing Normal Mode offers up to five Home Rewards.
It's an interesting experiment in alternative pay structures for arcade-style games. We look forward to seeing how the PSN audience reacts to it -- i.e., if users find the idea to be trash, and if they then panic