Per 
Object: SCP 249-J
Object Class: Euclid
Description:
SCP-249-J looks like a standard GBA board games cartridge. However while there are other board games available, the cartridge has them constantly locked with the only available game being chess. There are 4 available game modes, one is locked until all the others are beat, the four game modes are Easy, Normal, Hard, and Genius. When played depending on difficulty, the user, and the win or lose result. The Game Boy SCP-249-J is to be designated SCP-249-J-1. SCP-249-J was found in Edinburgh Scotland it was reported by a 10 year old's mother after she viewed her sons Game boy Exploding into confetti after he won a chess match
Containment procedures:
SCP-249-J is to be kept in storage unit 13 at site 47 personal with lv 3 clearance or higher can access SCP-249-J to test, If they are on break (Easy mode only if this rule is broken a demotion in clearance will be enabled)), or if they are not assigned a task at the tame (Same rules apply).
Testing Log 23
Setting: Easy
Result:Win
SCP-249-J-1 just poofed into a big explosion of confetti which disappeared as it hit the ground D-87769 was seen being overly read for another test even suggesting it to the scientist. When Agent Karlos used SCP-249-J getting the same winning results he reported an extreme moral boost as well as comforting feelings.
Testing Log 24
Setting: Easy
Result:Lose
SCP-249-J Did nothing However the D-Class then started screaming yelling to "Get water or a fire extinguisher" and "Oh god it burns as it turns out SCP-249-J Started heating up the subject throughout the entire body and cause an intense burning sensation like fire however this did no harm it just caused pain effects lasted for approximately 1 hour before concluding .
Testing Log 35
Setting: Normal
Result:Win
SCP-249-J closed and opened with $15 then transmuted telepathically asking the user to give one low level free wish.
Testing Log 37
Setting:Normal
Result:Lose
Subject vanished for approximately 5 minutes before subject reappeared crying when asked what happens D-4565 said he watched his entire family die in horrific ways see addendum
SCP-249-J-D-4565
D-4565 killed himself shortly after.
Testing Log 85
Setting: Hard
Result: Win
SCP-249-J promoted D-8679 to lv 3 researcher higher level researchers were not allowed to demote in any way Agent potviski. tried this. See addendum SCP-249-J-D-8679.
Testing Log 343
Setting:Hard
Result:Lose
Subject was forced to live forever you may think this isn't bad but every time someone the subject cared about was about to die in any way he would be teleport ed and forced to watch the death. see addendum-SCP-249-J-8.
Testing Log 365
Setting: Genius
Result: Win
User was granted every wish he desired until the time of death.
Testing Log 686
Setting:Genius
Result:lose
we ran two test with different D-class personnel the first one we don't know what exactly happened all he chanted as "Darkness that's all i see" subject then reported hearing ticking after 2 weeks subject went insane and was terminated Test 2 after 2-4 days subject seemed to be in a great amount of distress they reported hearing whispers, growls, roars all demonic and eco-ey after 2 weeks subject claimed seeing things monster creatures things they were afraid of they were asked to photograph one of the creatures the picture was blank subject was found dead 2 years later in their cell via slit throat mark resembled something of a claw
