[Annuga]

Holy shit a BUNCH of unused designs from an old Gold and Silver demo were found

152 Happa (Chikorita)
153 Hanamogura (replaced by Bayleef)
154 Hanaryuu (Meganium)
155 Honōguma (replaced by Cyndaquil, may have inspired Teddiursa)
156 Volbear (replaced by Quilava)
157 Dynabear (replaced by Typhlosion)
158 Kurusu (replaced by Totodile, may have inspired Popplio)
159 Aqua (replaced by Croconaw, may have inspired Brionne)
160 Aquaria (replaced by Feraligatr, may have inspired Primarina, especially with the “-aria” part)
161 Hoothoot
162 Bohboh (early Noctowl)
163 Pachimei (Mareep)
164 Flaaffy
165 Ampharos
166 Mikon (baby Vulpix)
167 Monja (baby Tangela, evolutions added to a single stage grass type may have inspired Budew/Roserade)
168 Jaranra (evolved Tangela, may have inspired Tangrowth)
169 Haneei (early Mantine)
170 Pukuu (Qwilfish)
171 Shibirefugu (evolved Qwilfish, may have inspired Stunfisk)
172 Pichu
173 Cleffa
174 Igglybuff
175 Quagsire
176 Natu
177 Xatu
178 Gyopin (baby Goldeen)
179 Marill
180 Manbo-1 (“Sunfish-1”, like the naming system seen in Gen 7’s starter leak)
181 Ikari (evolves from Manbo-1, may be the namesake of Lake of Rage)
182 Grotess (evolves from Ikari, may have inspired Huntail)
183 X-ing (Crobat, evolves at level 44)
184 Para (baby Paras… yup)
185 Kokumo (Spinarak)
186 Twohead (early Ariados)
187 Yoroidori (Skarmory, not the Silver mascot like was theorized)
188 Animon (Ditto evolution, evolved with a Metal Coat trade and still only knows Transform)
189 Hinarzu (baby Doduo)
190 Sunny (Sunflora)
191 Paon (Phanpy)
192 Donphan
193 Twinz (baby Girafarig)
194 Girafarig
195 Painter (Smeargle)
196 Kohnya (baby Meowth)
197 Rinrin (female only)
198 Berurun (evolves from Rinrin, not programmed female only)
199 Politoed
200 Slowking
201 Unown (not on this sheet, same sprites as final. Y and Z are swapped)
202 Ledyba
203 Mistuboshi (early Ledian)
204 Puchicorn (baby Ponyta)
205 Espeon (evolved with “Heart Stone”)
206 Umbreon (was Poison type, evolved with “Poison Stone”)
207 Turban (no data relation to the Slow line, but it’s the fan theorized “Brofish”)
208 Betobaby (baby Grimer)
209 Remoraid
210 Octillery
211 Gongu (early Tyrogue, still evolves into all 3)
212 Hitmontop
213 Puddi (baby Growlithe)
214 Haneko (early Hoppip, slight name difference)
215 Poponeko (early Skiploom, slight name difference)
216 Wataneko (early Jumpluff, slight name difference)
217 Baririina (baby Mr. Mime, may have inspired Mime Jr.. Name is identical to one on the internal Gen 1 Poll)
218 Lip (early Smoochum)
219 Elebaby (early Elekid, male only)
220 Magby (just like Bart)
221 Bellossom (evolves with “Poison Stone”)
222 Tsubomitto (Weepinbell alternate evolution, evolves with “Poison Stone”)
223 Miltank
224 Bombseeker (Water/Fire)
225 Gift (early Delibird)
226 Kotora
227 Raitora (evolves from Kotora)
228 Madame (evolves from Farfetch’d at Level 24)
229 Norowara
230 Kyonpan (evolves from Norowara at Level 1)
231 Murkrow
232 Happy (early Blissey, evolves from Chansey at Level 45)
233 Scizors (early Scizor, evolves from Scyther at Level 41)
234 Plux (evolves from Pinsir at Level 42. May have inspired Heracross.)
235 Devil (early Houndour)
236 Houndoom
237 Wolfman (may have inspired Swinub)
238 Warwolf (may have inspired Piloswine, evolves from Wolfman at level 25)
239 Porygon2 (early design based on Pon de Lion, mascot of the Mister Donuts chain and a nice lawsuit)
240 Namehru (evolves from Lickitung at Level 32, may have inspired Lickilicky)
241 Steelix (evolves from Onix at Level 38)
242 Kingdra (evolves with a Dragon Scale trade)
243 Rai (early Raikou, may have inspired Luxray)
244 En (early Entei)
245 Sui (early Suicune)
246 Sneasel
247 Ho-Oh
248 Togepi
249 Snubbull
250 Tail (early Aipom)
251 Leafy/Leafeon (evolves from Eevee with a Leaf Stone. May have inspired Leafeon)