I recently put in a code for all pokeballs and they spilled over into my..

You can't erase it, you screwed up. :(

Did you try throughing it away? If you can't do that start over.

All you need to do is press A on it and select toss.

You have two options:
1. Start a new game.
2. Put some more cheats on.

Okay so I had the problem where I used a cheat to get all the HM and TMs but when I did that it ended up filling up all my key items slots and all of my pokeballs slots. I couldn't buy any pokeballs and I could not continue the game because I couldn't get any more keys items because it was full of TMs and HMs. SO what I did was I ended up finding a cheat that clears out the entire Key Items bag. Then I found a list of cheats that you can use to get each individual key item back. So you use the key items delete code. Then go to the pokemart and then go through and enter the code for the key Item you need and then talk to the pokemart guy behind the store counter and then buy THE FIRST ITEM. For me it was listed as a great ball for $0. When you click on it he will sell you the key item that you want. After you get that key item you go back into your cheats, delete that key item code and do the next key item code. Rinse and repeat. You can get all your key items back this way.

Next I also had my pokeballs bag full of TMs and HMs so I couldn't buy any pokeballs at the pokemart so now I can't even catch any Pokemon so what I did is I found another cheat somewhere that gives you all of the different kinds of pokeballs. You enter that cheat code and all of the pokeballs greatballs ultraballs master balls and all the other balls will just appear right into your pokeballs bag and it will replace all of the HM and TMs. So now I can actually continue the game like nothing happened! Here's all of the cheat codes you will need!

Below is the code to delete everything in your key items bag.

0D9F24B7 465FAE78
7553F6F8 B56AE7B0

Next here is the codes you will need to get each and every Key Item back into your bag one at a time. Codes below with instructions.

How to use: Enter code 82005274 0YYY and replace YYY with the equivalent RS key item id, enter Pokemart, and PURCHASE THE FIRST ITEM ON THE LIST.

103 - Mach Bike
104 - Coin Case
105 - ItemFinder
106 - Old Rod
107 - Good Rod
108 - Super Rod
109 - SS Ticket
10A - Contest Pass
10B - ?
10C - Wailmer Pail
10D - Devon Goods
10E - Soot Sack
10F - Basement Key
110 - Acro Bike
111 - Pokeblock Case
112 - Letter
113 - Eon Ticket
114 - Red Orb
115 - Blue Orb
116 - Scanner
117 - Go-Goggles
118 - Meteorite
119 - Rm 1 Key
11A - Rm 2 Key
11B - Rm 4 Key
11C - Rm 6 Key
11D - Storage Key
11E - Root Fossil
11F - Claw Fossil
120 - Devon Scope

Next here is the cheat code required to obtain all types of pokeballs in the game directly I to your pokeballs bag without having to buy them at the pokemart.

085938BB 99FF313D
2DAFD739 5D796510


So those are all the codes you will need. I REALLY HOPE THIS HELPS MORE PEOPLE THAN JUST ME!