Topic: What is wrong with my Cartridge and or NES?

I bought a copy of Tetris off of eBay and got my NES working by cleaning it (twice)
and It works and all but all I can see is half of the play field, as you can see in this video.

Judging by the graphics being offscreen to that degree, and given you have already cleaned your game and you 72-pin, it sounds to me like the pins are bent out of shape, and I believe the best solution would be to find a refurbished 72-pin with pins adjusted on Ebay, or if you have a retro store near you, you could ask them if they fix NES systems.

You always have the 72-pin refurb option, and I highly recommend that you clean the contacts on your NES motherboard before inserting the replacement 72-pin to ensure that the game works. Oh, one thing. Be careful not to buy 72-pins that are listed as "brand new", as those are made with cheap metals, and will break easily, so do make sure its OEM before you purchase it. Hope this helps!

Thank you very much
I don't have much money to spend at the moment. (I have two things I want to buy more this Black Friday)
With what you said cleaning the contacts on the NES motherboard before inserting the replacement 72 Pin connector, I don't think I really cleaned that part well (not with a toothbrush that is)
So I will try once more with a toothbrush on the contacts of the motherboard.
If not I will learn to adapt to such a playing field like this.
Thank you for telling me

@Sercretname Sure thing!! I'm glad I'm able to help! Oh, I forgot to mention another thing. Personally, I recommend cleaning all of your NES games after getting the new 72-pin, just to make sure the repair lasts, but yeah, it's a night and day difference here, and do stay safe on Black Friday! Cheers!

NES is so old and outdated by now your best bet is probably find a different one like at a goodwill or something. It’s probably hard to fix it.

@Atomic77 Or go to a specialty retro gaming shop if he has one. As far as I'm concerned, the NES has been considered old, obsolete and outdated even back when I had mine in 2004 from Gamestop. It gets that reputation of being called old, even in 2004, because it's such a well-known classic system that did really well when it was sold in local retailers. I wouldn't really categorize it like that, but that's just me, I guess.

@Atomic77 It's old enough that fixing it is the only option. Buying another one is surely to be buying another with the same problem. It's like Pokemon Gen 2/3 dead batteries, any original batteries still inside a genuine copy will be dead.
Also Goodwills by me seem to have stopped selling most consoles/games in store many years ago, instead shipping them off to auction. All I have found since is the one random-*** cart game (and it's something like Cruisin' USA for N64 that nobody wants found among the books) found lying around the store, or PS2/Xbox sports games in the DVDs.)

@KingMike All Goodwill's Nationwide have stopped selling any video games in stores. Employees are trained that if any come in to set them aside and which then the manager sends them somewhere else so that they can be put up on their auction site.

@KingMike I wholeheartedly agree here. I actually get the batteries replaced professionally each time I buy a game that has the original battery. It also doesn't cost too much to have it serviced with an OEM 72 pin connector, like I had done with mine.. Definitely a wonderful piece of hardware worth owning!

@Tasuki I've known for awhile but that sucks. I know they do it because they figure it's more profitable to send them to auction. But that really creates a separation between are they a "store" or "charity" like no other.

@KingMike The way they see it is the more money they can get for an item the more they raise for the charities they are partnered with. They way they classify that they are charity is by giving the money to local charities not by what they charge in the stores.

Well where I live you never know what you will find. I have found stuff as old as the original PlayStation around these places.

Have you tried blowing on the cartridge

@Tasuki Goodwill still sell video games, typically the kind no one wants such as family games and sports titles. Video games are typically scanned onto a computer and the software provided determines if the product should be sent to commerce to be sold online. Video game system are directly sent to commerce with no chance of being sold on the store floor. Maybe some broken systems and really scratched games go to Goodwill's outlet store to be sold by the pound. Perhaps, the OP could try there to find a 72-Pin Connector from a broken system but that honestly maybe a waste of time and effort just to come up short. Even if he was to find one, it probably wouldn't work anyways. Also, no Goodwill doesn't care about charity, they only do that make their business look good. If they really cared, they would pay their employee's a decent wage. Sure, 7.25 is the minimum wage where I live but most businesses including Wal*Mart offer a little bit more and the Goodwill managers keep wondering why is it so hard to find new employees these days but I suppose I am going off-topic so I'll stop here.

@MortalKombat2007 Places like Walmart that offer more the minimum wage for minimum wage jobs can afford it by cutting back other things. For example those people are making more hourly but they don't work full 8 hour shifts they work 4 or less so in the end they are getting about as much on their check as someone who works 8 hours at minimum wage. Also Walmart does not offer their minimum wage employees benefits like Medical, dental or vision. Walmart also will fire woman who gets pregnant, and fire people.if they are too old and even in some cases are mentally handicap by their standards.

Yeah Goodwill may have flaws but let's not act that Walmart is a better business to work for.