diff --git a/src/main.c b/src/main.c
index cc02b04..d1e9cc9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,13 +1,6 @@
 #include "test.h"
 #include "debug.h"
 #include "vm.h"
-#include <fcntl.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/uio.h>
-#include <unistd.h>
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
 #endif
diff --git a/test/bench/add.wren b/test/bench/add.wren
deleted file mode 100644
index fbaca81..0000000
--- a/test/bench/add.wren
+++ /dev/null
@@ -1,6 +0,0 @@
-var add = Fn.new { |a, b|
-  return a + b
-}
-
-var sum = add.call(1, 1)
-System.print(sum.toString)
diff --git a/test/bench/fib.wren b/test/bench/fib.wren
deleted file mode 100644
index 564109b..0000000
--- a/test/bench/fib.wren
+++ /dev/null
@@ -1,10 +0,0 @@
-class Fib {
-  static fib(n) {
-    if (n < 2) return n
-    return fib(n-1) + fib(n-2)
-  }
-}
-
-var result = Fib.fib(35)
-
-System.print(result)
diff --git a/test/bench/loop.wren b/test/bench/loop.wren
deleted file mode 100644
index beca453..0000000
--- a/test/bench/loop.wren
+++ /dev/null
@@ -1,10 +0,0 @@
-var a = 5.0
-var i = 5
-while (i >= 0) {
-  a = a + 5.0
-  i = i - 1
-}
-var b = a
-System.write("Enter a string: ")
-System.print(a.toString)
-System.print(b.toString)
diff --git a/test/bench/run.sh b/test/bench/run.sh
index f71b44d..564cd49 100755
--- a/test/bench/run.sh
+++ b/test/bench/run.sh
@@ -16,22 +16,22 @@ print_section() {
   printf '\n\e[1;34m%s\e[0m\n' "$1"
 }
 
-# Wren Implementation
-print_section "Wren ($FILENAME.wren)"
-time wren "$FILENAME.wren"
+# Unfair LuaJIT Implementation
+print_section "Lua ($FILENAME.lua)"
+echo "test input" | time luajit "$FILENAME.lua"
 
 # Lua Implementation
 print_section "Lua ($FILENAME.lua)"
-time lua "$FILENAME.lua"
+echo "test input" | time lua "$FILENAME.lua"
 
 # Perl Implementation
 print_section "Perl ($FILENAME.pl)"
-time perl "$FILENAME.pl"
+ echo "test input" | time perl "$FILENAME.pl"
 
 # Python Implementation
 print_section "Python ($FILENAME.py)"
-time python3 "$FILENAME.py"
+ echo "test input" | time python3 "$FILENAME.py"
 
 # ZRE Implementation
 print_section "zre ($FILENAME.zre)"
-time ../../src/zre "$FILENAME.zre"
+ echo "test input" | time ../../src/zre "$FILENAME.zre"
diff --git a/test/loop.s b/test/loop.s
new file mode 100644
index 0000000..bfb52c0
--- /dev/null
+++ b/test/loop.s
@@ -0,0 +1,19 @@
+main:	
+	loadf $0 5.0
+	loadi $1 5
+	loadi $2 0
+	loadi $3 -1
+loop:	
+	loadf $5 5.0
+	addr $0 $0 $5
+	addi $1 $1 $3
+	loadu $4 &loop
+	jgei $4 $1 $2
+	rtou $1 $0
+	gets $2
+	utos $3 $1
+	puts $3
+	rtos $3 $0
+	puts $3
+	puts $2
+	halt