diff --git a/src/mame/eolith/eolith.cpp b/src/mame/eolith/eolith.cpp
index 958f8a4ca6e29..c201f5ef3a240 100644
--- a/src/mame/eolith/eolith.cpp
+++ b/src/mame/eolith/eolith.cpp
@@ -1773,7 +1773,7 @@ GAME( 1998, ironfort,  0,        ironfort, ironfort,  eolith_state,   init_eolit
 GAME( 1998, ironfortc, ironfort, ironfort, ironfortc, eolith_state,   init_eolith,   ROT0, "Eolith (Excellent Competence Ltd. license)", "Gongtit Jiucoi Iron Fortress (Hong Kong)", MACHINE_SUPPORTS_SAVE ) // Licensed/Distributed to Hong Kong company Excellent Competence Ltd.
 GAME( 1998, hidnctch,  0,        eolith45, hidnctch,  eolith_state,   init_eolith,   ROT0, "Eolith", "Hidden Catch (World) / Tul Lin Gu Lim Chat Ki '98 (Korea) (pcb ver 3.03)",  MACHINE_SUPPORTS_SAVE ) // or Teurrin Geurim Chajgi '98
 GAME( 1998, hidnctcha, hidnctch, eolith45, hidnctch,  eolith_state,   init_eolith,   ROT0, "Eolith", "Hidden Catch (World) / Tul Lin Gu Lim Chat Ki '98 (Korea) (pcb ver 3.02)",  MACHINE_SUPPORTS_SAVE ) // or Teurrin Geurim Chajgi '98
-GAME( 1998, raccoon,   0,        eolith45, raccoon,   eolith_state,   init_eolith,   ROT0, "Eolith", "Raccoon World", MACHINE_SUPPORTS_SAVE | MACHINE_NOT_WORKING )
+GAME( 1998, raccoon,   0,        eolith45, raccoon,   eolith_state,   init_eolith,   ROT0, "Eolith", "Raccoon World", MACHINE_IMPERFECT_TIMING | MACHINE_SUPPORTS_SAVE | MACHINE_NOT_WORKING )
 GAME( 1998, puzzlekg,  0,        eolith45, puzzlekg,  eolith_state,   init_eolith,   ROT0, "Eolith", "Puzzle King (Dance & Puzzle)",  MACHINE_SUPPORTS_SAVE )
 GAME( 1999, candy,     0,        eolith50, candy,     eolith_state,   init_eolith,   ROT0, "Eolith", "Candy Candy",  MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE )
 GAME( 1999, hidctch2,  0,        eolith50, hidctch2,  eolith_state,   init_hidctch2, ROT0, "Eolith", "Hidden Catch 2 (pcb ver 3.03) (Kor/Eng) (AT89c52 protected)", MACHINE_SUPPORTS_SAVE )
diff --git a/src/mame/sigma/sigmab98.cpp b/src/mame/sigma/sigmab98.cpp
index 98b0b72bff901..68d288b8d5578 100644
--- a/src/mame/sigma/sigmab98.cpp
+++ b/src/mame/sigma/sigmab98.cpp
@@ -2394,18 +2394,18 @@ ROM_END
 ***************************************************************************/
 
 // Sigma Medal Games
-GAME( 1997, dodghero, 0,        dodghero, sigma_1b, sigmab98_state, empty_init,    ROT0, "Sigma",             "Minna Atsumare! Dodge Hero",           0 )
+GAME( 1997, dodghero, 0,        dodghero, sigma_1b, sigmab98_state, empty_init,    ROT0, "Sigma",             "Minna Atsumare! Dodge Hero",           MACHINE_IMPERFECT_SOUND )
 GAME( 1997, sushimar, 0,        dodghero, sigma_3b, sigmab98_state, empty_init,    ROT0, "Sigma",             "Itazura Daisuki! Sushimaru Kun",       0 )
 GAME( 1997, gegege,   0,        sigmab98, sigma_1b, sigmab98_state, init_gegege,   ROT0, "Sigma / Banpresto", "GeGeGe no Kitarou Youkai Slot",        0 )
-GAME( 1997, b3rinsya, 0,        sigmab98, sigma_5b, sigmab98_state, init_b3rinsya, ROT0, "Sigma",             "Burning Sanrinsya - Burning Tricycle", 0 ) // 1997 in the rom
+GAME( 1997, b3rinsya, 0,        sigmab98, sigma_5b, sigmab98_state, init_b3rinsya, ROT0, "Sigma",             "Burning Sanrinsya - Burning Tricycle", 0 ) // 1997 in the ROM
 GAME( 1997, pepsiman, 0,        sigmab98, sigma_3b, sigmab98_state, init_pepsiman, ROT0, "Sigma",             "PEPSI Man",                            0 )
-GAME( 1998, tbeastw2, 0,        sigmab98, sigma_3b, sigmab98_state, init_tbeastw2, ROT0, "Sigma / Transformer Production Company / Takara", "Transformers Beast Wars II", 0 ) // 1997 in the rom
+GAME( 1998, tbeastw2, 0,        sigmab98, sigma_3b, sigmab98_state, init_tbeastw2, ROT0, "Sigma / Transformer Production Company / Takara", "Transformers Beast Wars II", 0 ) // 1997 in the ROM
 GAME( 1997, ucytokyu, 0,        sigmab98, sigma_js, sigmab98_state, init_ucytokyu, ROT0, "Sigma",             "Uchuu Tokkyuu Medalian",               0 ) // Banpresto + others in the ROM
-GAME( 2000, dashhero, 0,        sigmab98, sigma_1b, sigmab98_state, init_dashhero, ROT0, "Sigma",             "Minna Ganbare! Dash Hero",             MACHINE_NOT_WORKING ) // 1999 in the rom
+GAME( 2000, dashhero, 0,        sigmab98, sigma_1b, sigmab98_state, init_dashhero, ROT0, "Sigma",             "Minna Ganbare! Dash Hero",             MACHINE_NOT_WORKING ) // 1999 in the ROM
 // Banpresto Medal Games
 GAME( 2001, lufykzku, 0,        lufykzku, lufykzku, lufykzku_state, init_lufykzku, ROT0, "Banpresto / Eiichiro Oda / Shueisha - Fuji TV - Toho Animation", "Otakara Itadaki Luffy Kaizoku-Dan! (Japan, v1.02)", 0 )
 GAME( 2002, mnrockman,0,        rockman,  lufykzku, lufykzku_state, init_rockman,  ROT0, "Banpresto / Capcom / Shogakukan / ShoPro / TV Tokyo", "Medal Network: Rockman EXE", 0 )
-// Sammy Medal Games:
+// Sammy Medal Games
 GAME( 1999, sammymdl, 0,        sammymdl, sammymdl, sammymdl_state, init_animalc,  ROT0, "Sammy",             "Sammy Medal Game System BIOS",         MACHINE_IS_BIOS_ROOT )
 GAME( 1999, kingyosu, sammymdl, itazuram, sammymdl, sammymdl_state, init_animalc,  ROT0, "Sammy",             "Dokidoki Kingyo Sukui",                0 )
 GAME( 1999, shatekds, sammymdl, animalc,  sammymdl, sammymdl_state, init_animalc,  ROT0, "Sammy",             "Shatekids",                            0 )