I devote myself to the contents of an inexpensive "Oregon Trail" game machine of less than 3000 yen to make a small portable game machine

Game which sold more than 65 million books on the theme of American West development history "Oregon Trail (Oregon Trail)"Basic FunI sold it as an inexpensive game machine with $ 24.99 (about 2700 yen). However, a hacker who is dissatisfied with this game machine as "disgusting and disgusting" has decomposed and remodeled its contents to create an original game machine "Oregon Trail Pocket Portable"We are making up.

The appearance of creating Oregon Trail Pocket Portable is released in the following movie.

Oregon Trail Pocket Portable - YouTube


It's the YouTube channel "The Ben Heck ShowMr. Ben Heck (right)


It is a portable game machine that you can play by playing the game "Oregon Trail"The Oregon Trail Handheld Game"


It is a vertically-oriented game machine with a display like the original Macintosh.


In order to see contents, disassembly work started.


Mr. Heck takes the Oregon Trail Handheld Game.


It seems that the parts imitating a floppy disk is a power button.


The brightness of the display is not so good.


Start by removing the battery.


There was AA batteries in it. Mr. Heck is made in China as expected.


Remove the battery, remove the screw ... ....


The back cover has come off.


"It's not packed quite a bit at all ...."


The two black resin parts on the motherboard are said to have ASIC installed. The way to protect the ASIC with resin is said to be called "Glop Top", and it is said to be common in the old electronic equipment because it can be cheaply covered. It seems that it was adopted even in the former Nintendo game machine.


Button part of the controller


When rubber parts are removed, it looks like this.


We separated the speaker and the controller part and removed the main parts with the liquid crystal display attached.


Lift the liquid crystal panel ......


Mr. Heck looking in with a magnifying glass. It is directly soldered, but it is not unusual for inexpensive equipment. It seems that it is not a serial connection.


Next, extract ROM data.


We will ask Mr. Philix to cooperate in retrieving data.


I used Raspberry Pi.


Mr. Heck adopts "The Oregon Trail Handheld Game"I2C EEPROMRead out the specifications of the memory parts and support code input for Mr. Philix.


Binary data display succeeded.


In addition, it succeeded in extracting the name of a person in the registered game. I was able to confirm that the saved data remains.


Next, we will work on data hacks.


The left side of the screen is the binary data taken out earlier.


"Repeat" part is found. It seems that the save data contents are written in this area.


Mr. Heck searches binary data for numbers in the game data that I saved. Data of food "400" pounds ......


I converted it to hexadecimal number and got "190". Look for the digit string '0190' from the binary data.


I can not find it even if I search "0190". When searching only with "90", we found a row of "9001".EndianIt seems that the order has been changed by.


Mr. Heck will discover the parameter part one after another with a memo pad with game data recorded.


When the parameter part is found, we will change the numerical value. Food that was only 400 pounds will be upgraded to 65,535 pounds, the number of bullets will be 100 to 65535, clothing will be upgraded from 5 to 42000, somewhat modest.


The created binary data is written to a commercially available EEPROM.


Write the data back to The Oregon Trail Handheld Game.


The saved user name was displayed correctly.


Mr. Hec who was convinced of Hack success is this expression.


Reattach the chip with solder.


Display the number of items on the display, confirm that it is steadily increasing. Mr. Heck, "I am rich like this!", I realized that the number of food and bullets was "5535" instead of the maximum of "65535" in the designated 16 bits.


Apparently it is not supposed that the number of items will increase until the fifth digit, so it seems that only the last 4 digits have been reflected.


When the hack of The Oregon Trail Handheld Game succeeded, it went to the corner "SURPRIZE PORTABLE!"


Mr. Karen who does not float with the original The Oregon Trail Handheld Game in hand. It is a very easy-to-understand performance.


Karen's dissatisfaction is that game machines are big like bricks and can not be carried around. Mr. Heck left the spot when telling "It is kinda waiting".


Mr. Heck outputs parts with a 3D printer ......


Make original design parts ......


Cut parts with a laser cutter.


And we will assemble all the parts.


Contents of soldering wires.


Mr. Heck's original "Oregon Trail Pocket Portable" portable game machine was completed.


Arrange a red buttoned button in the center.


The keys for cursor selection are also compact.


The speaker hall is also ant on the back. By diverting the main parts of The Oregon Trail Handheld Game such as the motherboard, by adding a case and a controller of original design, it was remodeled as a completely newly designed game machine.


Oregon Trail Pocket Portable is hand in hand with Mr. Heck of face.


Mr. Karen delighted with full marks and full marks.


"It is OK to charge with Micro-USB port"


And, checking the portability is done with this small front pocket of female pants too.


Pass the test. Mr. Heck has a white surprised expression.


The brightness of the display is also up, not only portability but also performance up. Of course, you can use cheap data.


We have reborn cheaply made game machines into attractive portable game machines with stunning hack technology.