diff --git a/src/cpu.rs b/src/cpu.rs
index f26ac5f..082ba62 100644
--- a/src/cpu.rs
+++ b/src/cpu.rs
@@ -11,7 +11,7 @@ pub struct CPU {
 }
 
 impl CPU {
-    pub fn new(mode: GBMode, rom: [u8; 0x10000]) -> CPU {
+    pub fn new(mode: GBMode, rom: Vec<u8>) -> CPU {
         CPU {
             reg: Registers::new(mode),
             mem: MMU::new(rom),
diff --git a/src/main.rs b/src/main.rs
index 1001de5..ac9dd98 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -43,7 +43,7 @@ async fn main() -> Result<(), impl std::error::Error> {
     println!("Starting \"{game_name}\"...");
 
     // Start CPU
-    let mut cpu = CPU::new(GBMode::Classic, buffer.clone().try_into().unwrap());
+    let mut cpu = CPU::new(GBMode::Classic, buffer.clone());
 
     while true {
         cpu.cycle();
diff --git a/src/mmu.rs b/src/mmu.rs
index 3cb5e51..e8bde96 100644
--- a/src/mmu.rs
+++ b/src/mmu.rs
@@ -1,5 +1,5 @@
 pub struct MMU {
-    rom: [u8; 0x10000],
+    rom: Vec<u8>,
     gpu: [u8; 0x2000],
     wram: [u8; 0x8000],
     hram: [u8; 0x7F],
@@ -8,7 +8,7 @@ pub struct MMU {
 }
 
 impl MMU {
-    pub fn new(rom: [u8; 0x10000]) -> MMU {
+    pub fn new(rom: Vec<u8>) -> MMU {
         MMU {
             rom,
             gpu: [0; 0x2000],