I love old school platformers, and by Old School platfomers I mean really old school platformers like Pitfall I and II for the 2600 rather than Mario era platformers.
One game I've noticed lately that I really think comes close to hitting this formula properly is Ninja + from Xbox Live Arcadde. I've only played Ninja +'s demo, but I think it is awesome and comes close to deserving the type of love that games like Pitfall I and II once received.
This thread is an opportunity for you to show some love to Ninja +.
Heavens to Murgatoids.