diff --git a/src/mame/drivers/blktiger.cpp b/src/mame/drivers/blktiger.cpp
index 56996780be5..999c86dedf1 100644
--- a/src/mame/drivers/blktiger.cpp
+++ b/src/mame/drivers/blktiger.cpp
@@ -586,7 +586,7 @@ ROM_START( blktigerb3 )
 	ROM_LOAD( "10.9a",  0x20000, 0x10000, CRC(fc33ccc6) SHA1(d492626a88565c2626f98ecb1d74535f1ad68e4c) )
 	ROM_LOAD( "9.8a",   0x30000, 0x10000, CRC(f449de01) SHA1(f6b40e9eb2471b89c42ab84f4214295d284db0c3) )
 
-	ROM_REGION( 0x0400, "proms", 0 )    /* PROMs (function unknown) */ // misisng in this dump
+	ROM_REGION( 0x0400, "proms", 0 )    // PROMs (function unknown), missing in this dump
 	ROM_LOAD( "bd01.8j",   0x0000, 0x0100, CRC(29b459e5) SHA1(0034734a533df3dea16b7b48e072485d7f26f850) )
 	ROM_LOAD( "bd02.9j",   0x0100, 0x0100, CRC(8b741e66) SHA1(6c1fda59936a7217b05949f5c54b1f91f4b49dbe) )
 	ROM_LOAD( "bd03.11k",  0x0200, 0x0100, CRC(27201c75) SHA1(c54d87f06bfe0b0908389c005014d97156e272c2) )
diff --git a/src/mame/drivers/gameking.cpp b/src/mame/drivers/gameking.cpp
index 5956f86a7b9..b381b324244 100644
--- a/src/mame/drivers/gameking.cpp
+++ b/src/mame/drivers/gameking.cpp
@@ -6,14 +6,14 @@
 
   Thanks to Deathadder, Judge, Porchy, Klaus Sommer, James Brolly & Brian Provinciano
 
-  hopefully my work (reverse engineerung, cartridge+bios backup, emulation) will be honored in future
+  hopefully my work (reverse engineering, cartridge+bios backup, emulation) will be honored in future
   and my name will not be removed entirely, especially by simple code rewrites of working emulation
 
   flashcard, handheld, programmer, assembler ready to do some test on real hardware
 
   todo:
   !back up gameking3 bios so emulation of gameking3 gets possible; my gameking bios backup solution should work
-  (improove emulation)
+  (improve emulation)
   (add audio)
 
   use gameking3 cartridge to get illegal cartridge scroller
diff --git a/src/mame/drivers/hng64.cpp b/src/mame/drivers/hng64.cpp
index 94c89804148..38cf63ed9b8 100644
--- a/src/mame/drivers/hng64.cpp
+++ b/src/mame/drivers/hng64.cpp
@@ -2192,7 +2192,7 @@ void hng64_state::hng64_shoot(machine_config &config)
 	hng64(config);
 
 	hng64_lamps_device &lamps(HNG64_LAMPS(config, m_lamps, 0));
-	lamps.lamps6_out_cb().set(FUNC(hng64_state::hng64_shoot_lamps6_w)); // start lamps (some misisng?!)
+	lamps.lamps6_out_cb().set(FUNC(hng64_state::hng64_shoot_lamps6_w)); // start lamps (some missing?!)
 	lamps.lamps7_out_cb().set(FUNC(hng64_state::hng64_shoot_lamps7_w)); // gun lamps
 }
 
diff --git a/src/mame/drivers/segas16a.cpp b/src/mame/drivers/segas16a.cpp
index a2bfe7f36c8..e1f90ff25a6 100644
--- a/src/mame/drivers/segas16a.cpp
+++ b/src/mame/drivers/segas16a.cpp
@@ -2827,7 +2827,7 @@ ROM_START( fantzonepr )
 	ROM_LOAD16_BYTE( "ic18-2614.bin",  0x10000, 0x8000, CRC(e05a1e25) SHA1(9691d9f0763b7483ee6912437902f22ab4b78a05) ) // MATCH
 
 	// these were missing, but it seems like they should be different?
-	ROM_LOAD16_BYTE( "ic23",  0x20001, 0x8000, BAD_DUMP CRC(531ca13f) SHA1(19e68bc515f6021e1145cff4f3f0e083839ee8f3) ) // misisng
+	ROM_LOAD16_BYTE( "ic23",  0x20001, 0x8000, BAD_DUMP CRC(531ca13f) SHA1(19e68bc515f6021e1145cff4f3f0e083839ee8f3) ) // missing
 	ROM_LOAD16_BYTE( "ic24",  0x20000, 0x8000, BAD_DUMP CRC(68807b49) SHA1(0a189da8cdd2090e76d6d06c55b478abce60542d) ) // missing
 
 	ROM_REGION( 0x10000, "soundcpu", 0 ) // sound CPU