It is hard for me to be so critical of
Tecmo Bowl: Kickoff because the easy excuse that anyone can give for it is just to simply say, "Well, its
Tecmo Bowl." That says a lot about the brand and license behind the game. The developers could have gone in numerous other directions, but they chose to keep it retro. I feel that it could have been better if they updated everything and just kept the core gameplay the same.
Anyways, Tecmo Bowl: Kickoff does offer a good time provided you acclimate yourself to the controls and setup right away. Since they don't have the NFL license, all of the teams are made up or references to real life teams. One of my personal favorites is the New Orleans Zombies (YAY!). It does offer a custom team feature though, so if you wanted, you could have the names, numbers, and playbook of some of the old teams from Tecmo Super Bow. The only complaint is that the customization option is a little lacking. You can only change the colors, emblems and uniforms from preset options. It would have been really nice to use the touch screen to draw symbols of outfits for the teams like you could in Mario Kart. So while you can't truly have New England Patriots, you can have the closest approximation.
If you aren't messing with the playbooks or uniforms, you can play in Quick Matches, Seasons, or an All Star Mode. Honestly though, for the most enjoyment, go with the All Star Mode since most of the players' stats are even so you can actually play a game instead of cursing at the game because that was the 4th turnover in 45 seconds. They added a new super move system into Tecmo Bowl: Kickoff as well, but you wouldn't know it at all because the opponents only use the super moves when they have a significant lead. To be quite honest, I never used a super move in any of my games that I played. The system isn't explained at all nor does it let you know which player has the special abilities ready.
That brings me to another thing, I would put it in difficulty but it is part of the main game, so here it goes. Tecmo Bowl: Kickoff does not teach you how to do ANYTHING. It is completely trial by fire. There are no on-screen prompts or training modes anywhere throughout the game. The only way to find out how to pull off a super move is to consult the manual. Come on guys, I need a little briefing on the game, it has been 10 years since I played the last one.
Lastly, you can take any of the teams or custom teams online with you if you want to have a quick grudge match against one of your friends. You can also trade teams with your friends if they made a version of the Jets that you want on your game. The downside to trading is that you have to delete one team to finalize the trade with your friend. So, don't get too attached to any of the existing teams because you have to get rid of them sooner or later.