diff --git a/src/sm_cpu_infra.c b/src/sm_cpu_infra.c
index ecbaf6d..fda9179 100644
--- a/src/sm_cpu_infra.c
+++ b/src/sm_cpu_infra.c
@@ -365,6 +365,10 @@ uint32 PatchBugs(uint32 mode, uint32 addr) {
     WORD(g_ram[22]) = 1; // MotherBrain_Instr_SpawnLaserEproj doesn't set R22
   } else if (FixBugHook(0x94A85B)) {
     memset(g_ram + 0xd82, 0, 8); // grapple_beam_tmpD82 not cleared in BlockCollGrappleBeam
+  } else if (FixBugHook(0xA0A35C)) {
+    // ProcessEnemyPowerBombInteraction - R18 may get overwritten by the enemy death routine
+    REMOVED_R18 = HIBYTE(power_bomb_explosion_radius);
+    REMOVED_R20 = (REMOVED_R18 + (REMOVED_R18 >> 1)) >> 1;
   }
 
   return 0;
diff --git a/src/variables.h b/src/variables.h
index 6c20ae3..db7d156 100644
--- a/src/variables.h
+++ b/src/variables.h
@@ -18,6 +18,9 @@ static inline void SetHiLo(uint16 *hi, uint16 *lo, uint32 t) {
 
 extern int32 *cur_coll_amt32;
 
+// Not used anymore
+#define REMOVED_R18 *(uint16*)(g_ram + 18)
+#define REMOVED_R20 *(uint16*)(g_ram + 20)
 
 #define INT16_SHL8(x) ((int16)(x) << 8)
 #define INT16_SHL16(x) ((int16)(x) << 16)