Nintendo announced their Wiikly Wii download offerings today. What's on the platter? Why Sonic Spinball and Double Dungeons can be yours for Wii Points, but most of all:

Tecmo Bowl! The most awesome old-school football game since vibrating magnetic football will be available this week!

Full game descriptions and prices are under the cut.

Tecmo Bowl (NES, 1-2 players, 500 Wii Points): Tecmo Bowl pits the player versus the computer in 11-game, single-elimination playoff action. Players also can go head-to-head with a human opponent in action or coach mode. The player can select from 12 teams. On offense there are usually two run and two pass plays to choose from. The player takes control of the quarterback before the snap and then either hands off to the running back or works through his receiver progression from the top to the bottom of the screen. Defense consists of trying to guess which offensive play the opponent will select and then taking control of one of the defensive players before the snap. A very simple power-meter system is used for kicking field goals, extra points and punts.

Sonic Spinball (Sega Genesis, 1-4 players, 800 Wii Points): Dr. Eggman (aka Dr. Robotnik) has taken over Mt. Mobius and turned it into a mechanical base. He is using energy from the magma flowing under the volcano to power his Veg-O-Fortress. He has the power to transform helpless animals into robots. Sonic the Hedgehog must take down this fortress to free the enslaved animals. The only way to make that happen is to trigger an eruption in the volcano it's built on. Sonic knows this can be done by removing the Chaos Emeralds that keep the volcano stable. Dr. Eggman, however, is also aware of the fragile relationship that exists between the emeralds and the mountain, and he's set up an elaborate Pinball Defense System to make sure the precious jewels don't go anywhere.

Double Dungeons (TurboGrafx16, 1-2 players, 600 Wii Points): Double Dungeons is a dungeon role-playing game that features smooth-scrolling 3-D game play. Two players can play at the same time, which makes this game truly stand out from the rest. There are 22 unique scenarios, spread out among six levels. The higher the level is, the harder the scenario. Because each scenario is independent, players can choose to start the game from any scenario other than the final one. Players defeat monsters in each dungeon to gain experience while searching for the "key" that opens the door to the room with the boss. They buy equipment at the shop, team up with characters and defeat the boss to clear a scenario. Players must conquer all 21 scenarios from levels 1 through 5 to obtain passwords. If they obtain all of them, they make their way to the final scenario!