TEC being shut down by the X-Nauts and trying to tell Peach his love, but stopping to function at the very last moment. He then "came back to life" with back-up datas and sacrificed himself to allow Mario and co to go back to Earth. The X-Nauts' base came back with the power of the Crystal Stars, but it was a bit sad.
And pretty much the whole plot of SPM was dramatic.
No Wi-Fi = no online, no WiiWare, no DSiWare. I hate my modem.
i think super paper mario had the most touching moments.
paper mario ttyd was touching. when the computer died....but you know that moment goes away the second you beat the game. because the computer actually survived and regained all its data. paper mario when twink flew away wasn't that touching, maybe to peach only. super paper mario had an ending where two people who loved each other sacrificed them self's for a greater good. you do not know what happened to them, they do not explain it. but at the end of the credit's it shows them living happily. all you know.is that they are together.