Displaced Gamers

Why does the game run so fast in Level 6? Why is the frame rate so inconsistent on the NES? Featured Game Genie Codes: (Take note that I have not tested all of these with a real cartridge) Disable Throttle AAET NNPA Disable Collision (Partial) ATEV GEOZ AVVT YUSZ AVKT YKSZ Diable Barrel Spawn RNG AVEZ VLSZ AEUX EUPZ

Technical pursuit of the code that leads to a crash on the NES for Tetris. Featured Game Genie Codes: (Take note that I have not tested all of these with a real cartridge) Unlock Two-Player Mode ZALAPP

Let's exploit the logic that crashes Tetris and write code by using the High Score Tables! All you need are a few extra controllers... Featured Game Genie Codes: Slower Drop Speed at High Levels PZNA-KPPA Repurpose Left Side Counters EIVP-ATEN AAVP-PTLA 0:00 Here, hold my tacos and watch this. 1:38 The Crash Theory Spreadsheet of Awesomeness 4:26 Our Target 7:14 Controllers, ports, and code explained 9:52 Has anyone seen D1 on the Controller Port? 10:43 240p Test Suite Cameo! 11:12 Two controllers for Each Player, huh? 12:08 Previously on "Behind the Code..." 12:35 We need to know what Temp_0 and Temp1 are 13:37 Original, Orange, and Yellow Interrupt Scenarios 17:54 Built my own controller. With switches. 19:27 What part of the High Score Table(s) will we use? 20:38 The Setup Work for Redirection 21:58 Opcodes explained 24:06 Programmin' Time! 29:25 Testing on the Emulator 30:43 Testing on Real Hardware 31:33 Outro

Why is there a flashing line above Shadow Man on the Stage Select screen? Why does the pause menu flicker? How do these NES graphics work, anyway? Let's find out! Featured Game Genie Codes: (Take note that I have not tested all of these with a real cartridge) Fix Boss Select Screen SXSK-IXSE SXVK-PXSE

Contra Force performance analysis, Mappers, porting the first Contra from NES to Famicom, Tiny Toon Adventures (yeah, seriously), and a small bit of Castlevania. It is all here. Featured Game Genie Codes: (Take note that I have not tested all of these with a real cartridge) Disable Sound, note hang AVXN-XTSZ

Developer Micronics made some rather odd decisions about the controls for Ikari Warriors when porting it to the NES. Let's dive into arcade rotary controls, the NES d-pad, calculating velocities, and a terrible frame rate. Featured Game Genie Codes: (Take note that I have not tested all of these with a real cartridge) Double Walking Speed (4.0) APUYGKAA Double Weapon Speed (16.0) AGOLXGAZ Double Water Speed (2.5) ZAXNYGIE

Can we run Ghosts 'N Goblins at 60 fps on the NES? Yes. How does the graphics engine work? What is wrong with these sprites? Why do they jitter? Let's go. Featured Game Genie Codes: (Take note that I have not tested all of these with a real cartridge) Ghosts 'n Goblins Invincibility AEVN-GIPA === 60 FPS Codes === Ghosts 'n Goblins PAKI-LZLA Double Dragon PESV-KIZA 1942 PEVK-LZLA Athena PEEK-TLZA Tiger-Heli PAOA-LLLA Ikari Warriors PAXI-PGGA