diff --git a/hdr/crt-sony-megatron-default-hdr.slangp b/hdr/crt-sony-megatron-default-hdr.slangp
new file mode 100644
index 0000000..c46e506
--- /dev/null
+++ b/hdr/crt-sony-megatron-default-hdr.slangp
@@ -0,0 +1,3 @@
+#reference ":/shaders/shaders_slang/hdr/crt-sony-megatron-sammy-atomiswave-hdr.slangp"
+hcrt_colour_accurate = "0.000000"
+hcrt_crt_screen_type = "0.000000"
diff --git a/hdr/crt-sony-megatron-gba-gbi-hdr.slangp b/hdr/crt-sony-megatron-gba-gbi-hdr.slangp
new file mode 100644
index 0000000..8a28f53
--- /dev/null
+++ b/hdr/crt-sony-megatron-gba-gbi-hdr.slangp
@@ -0,0 +1,4 @@
+#reference "shaders_slang/hdr/crt-sony-megatron-sammy-atomiswave-hdr.slangp"
+hcrt_colour_accurate = "0.000000"
+hcrt_crt_screen_type = "0.000000"
+hcrt_crt_resolution = "0.000000"